Scuba Diving & Snorkeling
Scuba diving is an underwater swimming activity involving the use of self-contained underwater breathing apparatus (SCUBA) while Snorkeling is the practice of swimming equipped with a diving mask and a shaped breathing tube called a snorkel. 
In Eilat, you can dive all year round and can always enjoy good visibility of the rich underwater world.
More Info about Snorkeling 
More info about Scuba Diving