Mauna Kea Two-Stop Snorkel Adventure + Hidden Craters Hike

See Hawai?i Island above and below the surface with the Mauna Kea Two-Stop Snorkel Adventure + Hidden Craters Hike—a nature-lover’s pairing that reveals living reefs and raw volcanic terrain in a single, beautifully paced day.

Your morning begins at Kawaihae Harbor aboard a fast, cushioned RHIB bound for two hand-selected sites. Slip into clear water over coral heads buzzing with reef fish; keep watch for honu (green sea turtles) gliding the edges. Crew-led briefings make new snorkelers comfortable, while strong swimmers can range a bit farther for photos near lava fingers and ledges. Hydration and light snacks are included, so you can linger in the moment rather than the cooler.

Later, trade masks for hiking shoes on the Hidden Craters Hike above Kona. With exclusive access beyond multiple locked gates, your guide leads a 3–4 mile trek across the slopes of Hualalai Volcano. Thread native dryland forest, step onto pahoehoe and ?a‘a flows, and peer into collapse pits and historic craters—including remnants from the 1801 eruption. A short scramble through a safe lava-tube segment adds goosebumps and geology in equal measure. Walking sticks, snacks, and beverages are provided; closed-toe shoes are a must.

Booked together, these experiences showcase the island’s geologic story from reef-building coast to lava-built mountains—without the hassle of juggling separate reservations. You’ll get clear packing tips (layers, sunscreen, water shoes vs. hikers) and a suggested schedule that respects drive times and trade winds.

Secure your Mauna Kea Two-Stop Snorkel Adventure + Hidden Craters Hike with Tripster and uncover Hawai?i Island’s wild textures—blue, green, and jet-black—start to finish.