Once you are nearing the reef, the crew will give you a safety briefing and hand out the sanitized snorkeling gear. They will also let you know a little of what to expect regarding the marine life you'll see. For beginners, a crew member will happily go over instructions on how to use the gear. Then into the warm waters, you go and follow the guide. Marvel at the teeming marine life with colorful tropical fish, coral, sponges, and so much more. This is a quiet world that's just filled with beauty. Finished snorkeling a bit early? Then float on the surface with noodles and catch some sun. The Marquesa offers a "stairway to the sea", which makes getting back on board a breeze.