Kealakekua Bay is where Captain Cook was killed in February 1779, during a conflict that began over a stolen boat. The obelisk marking the spot still stands on the far shore of the bay. The water around it is among the clearest and most fish-dense on the island.
The bay is Hawaii’s largest Marine Life Conservation District: 315 protected acres where fishing is prohibited and the fish population shows it. Most visitors park at Nāpōʻopoʻo and snorkel near the dock. The better snorkeling, near Kaʻawaloa Cove where the monument stands, is on the opposite side of the bay. Getting there requires a kayak with a state permit, a seat on a boat tour, or a 3.8-mile hike that drops 1,300 feet in full sun with almost no shade.
This guide covers all five water activities: snorkeling, kayaking, boat tours, scuba diving, and how to behave around the spinner dolphins that use the bay as a resting area. It also covers the two nearby land attractions worth combining into a full day: Puʻuhonua o Hōnaunau National Historical Park, 4 miles south, and Kona coffee farm tours within a few miles of the parking area.
The lot at Nāpōʻopoʻo fills by mid-morning on weekends. A weekday morning is the most reliable time if you’re arriving without a boat tour reservation.
Table of contents
If you are interested in brushing up your knowledge, you should definitely have a look at this 1992 resource study on historical sites on Hawai’i island.
About Kealakekua Bay
Kealakekua Bay is among the better snorkeling destinations on the island, on a stretch of coast worth spending a full day on. The bay hosts one of the most abundant coral reefs on the island and is located on the lush and tropical Kona coast. The center of the bay is deep and you can often find a pod of spinner dolphins that use the bay as resting grounds (read more on how to behave around wild dolphins).
Kealakekua Bay is one of the jewels of the south Kona district. You can find some of the best snorkeling on the island, in the middle of Kona Coffee country. Image source: @TioLuz on instagram
The whole region is rich in history and spans both a marine life conservation district *and* a state historical park. You can read more about both below:
Kealakekua Bay is a Marine Life Conservation District
There are 11 Marine Life Conservation Districts (MLCDs) in the state of Hawai’i (5 of which are on the Big Island), and the 315 acre Kealakekua Bay MLCD is the largest of them all.
A MLCD is a part of the ocean with an especially abundant reef habitat, where the fish population is given special protection against human interference. This protection means that fishing and other consumptive uses are prohibited or severely limited so that all aquatic live can grow and reproduce. MLCDs are thus home to a high density of fish species, and the fish in these districts are fairly tame, often showing little fear of humans. This explains why an MLCD is such a popular destination for snorkeling, diving and underwater photography.
If you are interested in learning more about our MLCDs you can do so on the official DNLR website.
Kealakekua Bay State Historical Park (and Napoʻopoʻo Beach Park)
The Kealakekua Bay State Historical Park spans the shoreline of almost all of Kealakekua Bay (except the south-eastern shoreline). The most accessible part of it is on the north-eastern edge of the bay where you can find Nopoʻopoʻo Beach Park with a parking area, a picnic pavilion, restrooms, showers, and a water fountain. Park opening hours are from 7:00 am to 8:00 pm (daily).
The small beach in the park next to the pavilion is known as “Napoʻopoʻo Beach” and was stripped of its sand by hurricane Iniki back in ’92. It now consists of a collection of rocks and, while not great for hanging out, it is reasonable for a quick swim and a good place for snorkeling. Note that there is no lifeguard on duty.
Napo’opo’o Beach is a small rocky beach in the Kealakekua Bay State Historical Park. Image credit: Nnachappa64 – Own work, CC BY-SA 4.0, Link
You can also find the Hikiau Heiau in this park. This Heiau is a well-preserved ancient temple in the park dedicated to the Hawaiian god Lono, but with a dark history: it was built as a place of human sacrifice.
Read more about the state park on the official state park website.
The Captain Cook Monument
Today the waters of Kealakekua Bay are quiet and serene, but things were not always like this!
Kealakekua Bay is an important historic location because it is where Captain James Cook landed for the first time on the island of Hawaii. One year later, on February 14, 1779, the same James Cook was killed here during his 3rd visit to the Hawaiian islands. This happened in a conflict that could probably have easily been avoided with more knowledge of the Hawaiian culture. You can find a well-written account of these fatehful events in an article on the Coffeetimes website called “the demise of Captain Cook“.
Nowadays this well-known explorer is remembered through one of the major landmarks on the south Kona coast: the 27 ft. tall Captain Cook monument. This structure was built in 1878 and is a white obelisk located at the Ka’awaloa Flats, in the western portion of the Kealakekua Bay State Historical Park.
You cannot reach the monument by car but it is possible to either hike to the monument or to get there over water (either by kayak or with a snorkeling tour).
The Captain Cook Monument is a 27 ft. tall white obelisk commemorating the explorer on the western shore of Kealakekua Bay
Water activities at Kealakekua Bay
The main things to do here are all water-related. The bay’s transparent waters are filled with coral, and schools of colorful tropical fish. Spinner dolphins sightings are common as they use the bay as a resting area.
The following activities will give you a chance to explore the pristine waters of Kealakekua Bay:
- Snorkeling
- Hiking
- Kayaking
- Boat tours
- Scuba diving
- Important note on how to behave around the wild dolphins
Kealakekua bay is a 1-mile wide bay close to the town of Captain Cook on the Big Island. The best snorkeling is on the northern (left on the picture) side of the bay. Image credit: google maps
1: Snorkeling in Kealakekua Bay
Kealakekua Bay is one of the best places in the entire state for snorkeling. Fish are plentiful, colorful and swarm over a well-developed reef that slopes steeply from the shore into the nearby deep water, making it easy to see different kinds of reef in a relatively short time.
The Nāpō‘opo‘o area (at the dock, where you’ll most likely park your car) is generally shallow with little coral, but snorkeling gets better going south a few 100 feet (meters) toward the southern tip of Manini Beach Point. Encrusting coral, caves, crevices and ledges, all can be found in these waters down to about 30 feet deep.
One of the many Pristine coral formations within Kealakekua Bay on the Big Island of Hawaii. Photo by Sarah Lee on Unsplash
Going north from the Nāpō‘opo‘o area (the bay’s northeastern side), the waters below the pali (cliff) are good for snorkeling during calm water conditions. Abundant coral growth and marine life can be seen in waters of about 5 feet deep.
The best snorkeling spot, however, is on the opposite side of the bay from the parking area, in front of the Ka’awaloa Flats (where the Captain Cook monument is located). There is no parking anywhere near the best snorkeling waters though, so you have to jump through some proverbial hoops to get to where you want to be.
Morning is the better time to snorkel on the east side of the bay. Afternoon breezes on the Kona coast typically chop up the surface by midday, reducing visibility near the Nāpōʻopoʻo entry points. If you’re snorkeling from shore, aim to be in the water before 10 a.m. Kaʻawaloa Cove on the west side is more sheltered and less affected by wind chop, which is one more reason the boat tour option is easier to time.
There are 3 ways to get close to this best snorkeling area:
2: Hiking to the Captain Cook Monument (3.8 miles round trip)
The hike down into Kealakekua bay to the Capt. Cook monument is challenging and not particularly scenic. The main reason people make this hike is to reach the Ka’awaloa Flats area without having to pay for renting a kayak a boat tour.
The trailhead is on Nāpō’opo’o Road just past the Hwy 11 intersection; there is a small pull-off with space for a few cars at the trailhead. From there you need to hike 1.9 miles to the water entry point, and over that distance you’ll lose 1300 ft. (400 meters) in elevation.
After you are done snorkeling you have to make up for that elevation again. To make matters more interesting: almost all of the trail is exposed to full sun, trail surface is predominantly loose lava rock and compacted dirt, and there is no cell signal for the final mile. Bring a hat, sunscreen, plenty of water, comfortable and close-toed shoes, and, of course, snorkeling gear!
If you are interested in making the hike you should have a look at the great description on the BigIslandHikes website for further planning.
3: Kayak rentals
Kayaking from the boat landing to the statue takes between 15 and 25 minutes (one way). Bring plenty of water, sunscreen, and again, don’t forget your snorkeling gear!
You are not allowed to land your kayak at the Ka’awaloa Flats (the piece of land on which the Captain Cook monument is located), which effectively means you’d have to tie off your kayaks together while they float in the water and keep an eye on them while you are snorkeling.
Kayaking permits:
The local ecosystem in Kealakekua Bay is suffering under its own popularity, and the Division of State Parks now issues mandatory permits for people seeking to take a vessel on the waters of the bay to prevent further damage to the shoreline and coral reef. While it is possible to obtain your own permit, it is a non-trivial process that takes a few weeks to complete (contact the State Parks office in Hilo at (808) 961-9540 for more information).
Luckily there are other options. You are not required to get your own permit when renting a kayak if the vessel possesses a valid permit for transiting the bay. This can be done either by joining a guided Kayak tour or by renting a kayak yourself.
Guided kayak tours:
Only two companies have been issued permits by the Division of State Parks to lead guided commercial kayak tours to the Captain Cook Monument (last verified June 2025, source). These are:
- Adventures in Paradise
- Kona Boys, Inc ($250 for the 5-hour morning snorkel or $170 for the 3-hour afternoon snorkel)
Morning and Noon Kayak & Snorkel at Kealakekua Bay
No experience necessary, beginners and children welcome. Join us as we guide you to Kealakekua Bay, then snorkel Captain Cook Monument!
from:
$80
What is a suggested tour?Our suggested tours are hand-picked tours that receive consistent good reviews, give back to the community, and work hard to minimize their impact on the environment. Read more about these tours on our website.Renting a kayak yourself:
If you want to make the trip yourself you can rent a kayak online here or find people offering kayak rentals on the side of Hwy 11 and along the road down to the bay (route 160). The list of permitted vendors changes often so please make sure to ask whomever you choose if they have a current commercial use permit.
Permitted kayaks are required to display the State Parks-issued decal on both bow sides. Check for this before renting.
4: Boat tours to Kealakekua Bay (snorkeling & scuba diving)
The easiest way to visit Kealakekua Bay for snorkeling or diving is as part of one of the many snorkel tours to the Captain Cook Monument.
Tour operators are familiar with the best areas in the bay to see fish and corals, and some companies also include lunch in the price of the tour. The cruises generally take between 3 hours and half a day and provide snorkeling gear, snacks and refreshments, as well as cultural, natural and historical information relevant to Kealakekua bay.
Tours operators that follow the Sustainable Tourism Association of Hawaiʻi (more info) guidelines are e.g. Sea Paradise and Fair-Wind (both departing from Keauhou Bay). Body Glove cruises (departing from Kailua-Kona) organizes dinner cruises to the bay without the possibility of snorkeling.
Afternoon Sail & Snorkel Tour to Kealakekua Bay
Sail to one of the best snorkeling spots on the island past the scenic Kona coastline with a spacious 50 foot catamaran from Keauhou to Kealakekua Bay. Notoriously difficult to reach over land, this is one of the best snorkeling spots on the island with pristine clear blue waters and a vibrant reef.
from:
$125
What is a suggested tour?Our suggested tours are hand-picked tours that receive consistent good reviews, give back to the community, and work hard to minimize their impact on the environment. Read more about these tours on our website.
Boat tours are the easiest way to go snorkeling at Kealakekua bay. This is the Hoku Nui catamaran from Sea Paradise in front of Kealakekua Bay, read more about snorkeling tours to Kealakekua Bay by Sea Paradise.
5: Scuba diving
Visibility at Kealakekua Bay typically runs 60 to 100 feet on calm mornings, which puts it among the clearer dive sites on the Kona coast. Depths at Kaʻawaloa Cove range from 5 to 120 feet, with the most interesting coral and fish density in the 30-to-60-foot range along the cove walls.
Entry conditions matter more on the east side of the bay than the west. The stretch between the Nāpōʻopoʻo landing and Manini Beach Point is exposed to north and northwest swell. When surf is up, surge over the ledges makes conditions uncomfortable and potentially unsafe. Check conditions before getting in, and skip this entry if there’s any wave action. Kaʻawaloa Cove on the far side is more protected and stays diveable in a wider range of conditions.
Most divers reach Kaʻawaloa by boat: the same operators running snorkel tours out of Keauhou Bay also offer dive charters, and several Kailua-Kona dive shops include Kealakekua on their regular schedule. You can bring your own gear or rent from the operator.
See our scuba diving guide for current operators, pricing, and certification requirements.
6: Spinner Dolphins: NOAA Rules and Guidelines
Dolphins are very smart and playful mammals and it can seem like great fun for both parties to play with dolphins. However, seeking out and trying to interact with the dolphins disturbs their natural behaviors and can interrupt much-needed rest periods.
Interactions between wild animals (dolphins) and humans are almost always disadvantageous for the animals but there are ways to mitigate our impact. The most important thing is to respect the resting behaviors of the spinner dolphins during their peak resting period between ~10 am and ~2 pm.
Since 2021, NOAA federal rules prohibit approaching within 50 yards of resting spinner dolphins in Hawaiian waters, by any means: boat, kayak, or swimmer. The rule applies to everyone. The peak resting period is roughly 10:00 a.m. to 2:00 p.m.. You can find more information at the NOAA “protect dolphins campaign”.
Read more about seeing dolphins on our website.
Getting to Kealakekua Bay
To get to the bay you need to get to take the Nāpō‘opo‘o turn off onto Nāpōʻopoʻo Road, which intersects with Highway 11 near the 111 mile marker, about 13 miles (20 km) south of Kona. The trailhead for the hike to the monument is only a few hundred feed after this intersection, while you need to follow Nāpōʻopoʻo Road another 4.5 miles (7 km) to its end to get to the eastern shoreline of the bay.
The lot at Nāpō‘opo‘o holds roughly 20–30 cars and fills by mid-morning on weekends. Street parking on Nāpō‘opo‘o Road is limited. Weekday mornings are the most reliable.
Ka‘awaloa Cove, the spot with the best snorkeling at the bay’s northern boundary just north of the Captain Cook monument, can be accessed only by hiking in, or over the water.
Nearby things to do (non water-related attractions)
It would be a waste of time to only visit the bay without seeing any of the other nearby attractions on the south Kona coast. This is the lush and tropical Kona Coffee country, and a good base for a full-day south Kona loop.
The following things are popular activities in the area:
Sunset Watching at Manini Beach
Manini Beach, halfway the eastern shore of the bay, is a GREAT place to see the sun set.
The small rocky beach (no sand) is located in front of Napo’opo’o park at the end of Manini Beach Rd, 0.4 miles from the Kealakekua Bay State Park. There is a large lawn and a ‘point’ that extends into the bay from which you have a great view of the setting sun.
Parking places are sparse here, which makes finding a spot difficult, especially during the hour before sunset.
Related: more great sunset spots!
Check out our 16 favorite sunset spots on Hawaiʻi (4 each on the Big Island, Maui, Kauaʻi, and Oʻahu) to make every sunset just a bit more special.
South Kona Road Trip
South of Kona the landscape becomes greener and the skies more cloudy. The dry lava fields change into lush green forests and coffee plantations and there are many great snorkeling and diving spots along the coast, plenty of scenic stops, and also a fantastic national park.
You can combine all these things (and more) into a road-trip by following for example our 12-mile “Coffee Country” scenic drive.
The Coffee Shack overlooks Kealakekua Bay and serves great lunch and of course Kona coffee
Kona Coffee Farm Tours
Kona Coffee is grown on a narrow elevation band a few miles from the bay. Farm tours typically run 45–90 minutes and end with a tasting. Most are free. Visiting a coffee farm for a tour is a great way to learn more about (and taste!) this famous coffee.
During a Kona coffee tour you are typically shown around the plantation to see the growing coffee in the field. Then you are taken through the processes that are needed to go from a growing coffee bean to a cup of coffee (drying, processing, and roasting). Many tours end with a (free) tasting of the coffee, very close to a showroom or visitor center where you can buy the local coffee if you’d like to take some home.
There are many great coffee farms close to Kealakekua bay, see our BIG list of Kona coffee farms to pick a favorite.
Kona Coffee Farm Tour at the Greenwell farm, close to Kealakekua bay. Source: here by user horspowr1001 under a CC BY-NC 2.0 license
Puʻuhonua o Hōnaunau National Historical Park
At 3.7 miles (9 minutes by car) from the Kealakekua Bay State Historical Park you can find one of our favorite places on the island to learn about the interesting cultural history of Hawaiʻi: the Puʻuhonua o Hōnaunau National Historical Park.
Also known as the ‘place of refuge’ or ‘city of refuge’, this park originally was a safe haven for those that broke the Kapu laws, which, in ancient Hawaii were punishable by death. If you reached the Puʻuhonua, you would be pardoned and given a second chance at life.
Count on spending at least one hour for a quick exploration of the park (preferably 2 or 3 hours), and another one or two hours to check out one of our other favorite snorkeling spots: Honaunau Bay (a.k.a. two step).
You can read more about this park on our website.
The Puʻuhonua o Honaunau National Park is one of our favorite places to see on the Big Island. Two-step, one of the island’s best shore-entry dive spots, is a 2-minute walk from the park entrance.