SNORKELIG

Snorkeling is a popular recreational activity, particularly at tropical resort destinations and at accessible scuba diving locations. Snorkeling is also employed by scuba divers when near the surface, and search and rescue teams may snorkel as part of a water-based search.
The primary attraction of snorkeling is the opportunity to observe underwater life in a natural setting. This may include coral reefs and their denizens, such as fish, cephalopods, starfish, sea urchins, and mollusks. Snorkeling in sandy areas may allow sighting of rays and various flatfish. Other organisms that can be seen while snorkeling include various forms of seaweed, jellyfish, shrimp, sea turtles, and occasionally anything else which may be found in the ocean.

Snorkeling requires no special training, only the ability to swim and to breathe through the snorkel. However, it is considered advisable that one get some instruction from a tour guide, dive shop, or equipment rental shop, any of which often can be found around popular snorkeling locations. Instruction generally covers equipment usage, basic safety, what to look for, and what to look out for, including how not to damage fragile organisms such as coral. As with scuba diving, it is always recommended that one not snorkel alone, but rather with a "buddy," a guide, or a tour group.
The mask and snorkel are similar to those used in scuba diving, but since they are not subjected to the pressures of deep water, they can be more lightweight and comfortable. Swimfins used in snorkeling are usually longer than those used in diving.
Experienced snorkelers often start to investigate amateur free-diving, which should be preceded by at least some training from a dive instructor or experienced free-diver.