Submarine & Glassbottom Boat (Cruises, Sailing & Boat Tours), Big Island tours & activities, fun things to do in Big Island | HawaiiActivities.com

Perfect for families with small children, these ocean adventures let you see the colorful underwater world of the Big Island without having to use any equipment or even get yourself wet! The glass bottom boats provide relaxing cruises as you look through the viewing ports, perfect for kids of all ages. The submarine ride allows you to dive down to depths even scuba can't take you, so you can see Hawaii's marine life in its natural environment.