Experience another specialty of Bike Hawaii on our most sought-after downhill bike ride. This easy 5-mile tropical bike ride coasts downhill on a paved road nestled in Oahu's lush Puu Ohia rainforest. This unique experience combines Hawaii’s tropical rainforest, magnificent panoramic views of scenic Oahu, the fragrance of tropical fruits and flowers with Hawaiian culture, history, native species of bird and animals, and its unique geological features. A great Hawaii bike tour for the family! Not recommended for children under 5 years of age. This Hawaii downhill biking adventure is available on its own or can be combined with additional adventures on the same day. To customize your experience, the following adventure combinations are available.