Step aboard Marian, a unique glass bottom boat built right here in Kona, Hawaii. She will take you on an exciting journey exploring Kona's fantastic reef. Marian glides over the shallow fringing reef bringing you within inches of its beauty. Cursing over the reef, you see and learn about the vibrant tropical fish, coral colonies, and other underwater wonders. Onboard naturalists and friendly crew share their love of the sea and island. You learn about fish, coral, Hawaiian history and more. This tour is a must for anyone interested in a relaxing way to see and learn about the wonders of Hawaii. No swimming required, just sit back and watch the underwater world glide by.