I took a taxi from the ship to French cul de sac where you get on a small boat ($6.00 round trip). It is questionable if there will be a taxi available in the parking lot on your return so you may need to be patient and plan accordingly. Water was calm with good visibility and, from what I hear, is usually calm due to where the reef is located relative to the island. It is a nice snorkel before the large tour groups get there from the cruise ships, but not spectacular. You'd like this place if there are weak swimmers in your group, especially if you can beat the crowds to the island.