Become a mermaid (or merman) for the day with Mermaid Swim VI. Crystal (the owner) is happy to meet you at your villa pool or one of the island’s many pristine beaches to teach you how to become one. Rates are $125 for a private lesson, $150 for two mermaids-in-training, $200 for three, $250 for four, and $300 for five. Good for children ages 3 and up and adults of all ages.