Volcano Bike Tours (Hawaii Volcanoes National Park), Big Island tours & activities, fun things to do in Big Island | HawaiiActivities.com Big Island volcano bike tours offer an efficient, fun and eco-friendly way to discover Hawaii Volcanoes National Park. Explore the park's vast living volcanic landscape and bike to area attractions, panoramic lookout points and, depending on lava conditions, maybe even get close enough to feel the heat of the volcano's power. Full and half-day tours are available and some include stops at the Volcano Winery for tasting or local cafes for dinner.