If you like snorkeling or if you've never tried it, you'll love to go Snuba diving. Snuba enables you to see the bottom of the sea even if you don't really know how to scuba dive. It starts with a 25-minute boat trip to Roqueta Island, where a certified instructor will show you how to use the equipment.
With Snuba you are connected to a rubber pontoon raft by an air hose that supplies the necessary air for breathing, so you can submerge up to 23 ft deep and explore the bottom of the sea. During the trip you'll have plenty of time to snorkel and swim freely, or to bask in the sun on deck for as long as you desire and get a marvelous tan.