Glass-bottom boat
A glass-bottom boat is a boat with sections of glass, panoramic bottom glass or other suitable transparent material, below the waterline allowing passengers to observe the underwater environment from within the boat. The view through the glass bottom is better than simply looking into the water from above, because one does not have to look through optically erratic surface disturbances. The effect is similar to that achieved by a diving mask, while the passengers are able to stay dry and out of the water.
Use
Glass-bottom boats are used for giving tours, as they are usually designed to allow the maximum number of tourists to view out the glass bottom.Glass-bottom boats are in use in many seaside tourist destinations as well as lake towns.
Typical tours in these boats include views of underwater flora and fauna, reefs, shipwrecks, and other underwater sights.