The Captain Cook Monument Trail in Captain Cook, Hawaii, leads hikers to a remote coastal landmark with stunning ocean views, rich history, and exceptional snorkeling at the water's edge.
Kealakekua Bay, where the Captain Cook Monument Trail concludes, carries one of the most consequential chapters in Pacific history. It was here, in January 1779, that the English explorer James Cook made his final landing during his third Pacific voyage, and it was on this same shore that he died in February of that year during a dispute with Native Hawaiian inhabitants. The white stone obelisk erected in his memory stands on a small plot of land formally ceded to the United Kingdom, maintained by the British government, and accessible only by sea kayak, boat tour, or the trail that bears his name.
Hikers descend roughly 1,400 feet over about two miles of rugged terrain, passing through dry scrubland and open lava fields before reaching the bay's crystalline waters. Kealakekua Bay is a designated State Marine Life Conservation District, which means the reef ecosystem here is among the healthiest and most vibrant on the island. Spinner dolphins frequently rest in the calm waters of the bay in the mornings, and the visibility underwater is often exceptional, making the site a draw for snorkelers from around the world.
The nearby town of Captain Cook, set in the coffee-growing region of South Kona, offers a handful of local cafes and farm stands where visitors can sample freshly roasted Kona coffee before or after the hike. The trail itself is not maintained to a manicured standard, which preserves its raw, unmediated character and keeps the experience feeling genuinely remote. For anyone seeking a hike that combines physical challenge, ecological richness, and a direct encounter with a pivotal moment in Hawaiian and world history, the Captain Cook Monument Trail stands apart from anything else on the Big Island.
Start hiking early in the morning, ideally before 8 a.m., to avoid the midday heat and secure a shaded spot along the trail.
Bring at least two liters of water per person, as there are no water sources along the route and the return climb is strenuous.
Pack snorkeling gear so you can explore the coral reef and abundant marine life directly at the base of the trail near the monument.
Wear sturdy trail shoes with good grip, as the lava rock path can be uneven and slippery, particularly after rain.
Check sea conditions before entering the water at Kealakekua Bay, and be aware that the bay is a protected marine sanctuary with strict rules against removing coral or marine life.
Snorkel two Kona favorites in one 4-hour trip
Paddle calm Kealakekua Bay at dawn and snorkel pristine reefs with a certified local guide.
Paddle and snorkel Kealakekua Bay with a certified guide—check in at 11:30am
Snorkel Kealakekua Bay with gear, snacks, and drinks included
Fly the Kona coast and land at Kona Joe’s Coffee for a roastery tour
Snorkel at night and watch manta rays feed under the lights