Castaway on an epic hilo hawaii waterfall dolphin adventure to see 30 of the best big island waterfalls meet the sea along the breathtaking hamakua coastline enjoy an exhilarating 3 hour ride on a luxurious 40 ft catamaran discover stunning exclusive views of dozens of the best hawaii waterfalls only accessible on this tour youll also see lush tropical landscapes learn the stories of historical places and explore unspoiled hawaiian scenery