Discover the beauty of konas underwater world aboardmarian a 36 foot custom designedglassbottom boat your expert naturalist will share the beauty of the seawithinsight to the world of corals and colorful tropical fishlookout and view konas coastline mountains historical sights and maybe even spot frolicking dolphins or seasonal whales this 50 minute tour is a must for all ages and experience levels avid divers and snorkelers are amazed to learn more about hawaiis unique marine