Your mask is probably the most important piece of equipment you will use while snorkeling. It must fit correctly or you will be constantly stopping to clear it. Before you go on your snorkeling vacation make sure your mask fits properly.
* First, take the head strap and fold it over the front of the mask.
* Next, place the mask against your face to cover your eyes and nose. While holding the mask in place, inhale through your nose.
* Now release your hold on the mask.
If the suction holds the mask in place, you have a good fit. If not, try another mask until you find one that fits.