You
may wonder why the pictures of the fishes are very sharp. It is because
I didn't take it outside a watertank through the glass panel. Rather, I
was under water with the diver at Discovery Cove. Needless to say, I
used a water-proof camera. The water is shallow and thus you don't
need special training to do this type of underwater photography.
However, it takes time for your body to adjust to the pressure.
Dizziness and disprientation may happen if you fly in an airplane too
soon after diving. Do not schedule any underwater activity on the last
day of your trip. In addition, before submerging your camera into
water, make sure that all doors of the camera is close in order to
avoid equipment damage.