Downhill Bike & Ko’olau Waterfall Hike

This combo tour from Bike Hawaii pairs a guided waterfall hike with a downhill bike ride, both set in Oahu's volcanic rainforest. Pickup is in Waikiki in an air-conditioned shuttle, and the day moves from hiking to biking in sequence.

The hike takes place on private property in the Ko'olau rainforest, following a dirt trail with rocks and roots to a waterfall, a pool, and tranquil streams. The trail is mild to moderate, and the terrain can be muddy and slippery when wet. Waterfall flow varies depending on recent rainfall, so conditions change from visit to visit. After the hike, participants coast downhill along a paved road through the Puu Ohia rainforest on an easy bike ride.

This tour suits travelers who want a mix of activities and are comfortable on uneven, potentially wet trail surfaces. Sturdy, closed-toe shoes are a practical choice given the dirt trail. Rain is common in the rainforest, so coming prepared for wet weather helps. The shuttle departs from Waikiki, making logistics straightforward for visitors staying in that area.