Anse Chastanet - St. Lucia
It is less busy in the morning and afternoon. We spotted more fish in the morning. Avoid midday too many snorkelers arriving by boat.
Climate and Crowds
Best months are during the dry season from December until May. Driest months are February to May. Day temperature always around 30 C°/ 86°F. Most sunshine in March. The rainy season lasts from June to November with the possibilities of hurricanes and flash floods. Wettest month is September. Minimum water temperature is 27 C°/ 81°F It's more crowded during the dry season, expect higher rates and crowds from mid-December to March. April and May rates decrease and "fewer" tourists except for Easter.
Anse Chastanet beach is one of the best diving and snorkeling spots in the Caribbean. Either you stay at the Anse Chastanet Hotel with its first class location, or you take a taxi to this fantastic spot. The road conditions are awful, and you shouldn't take a rental car to get there. The lunch at the hotel bar was delicious and reasonably priced. The place itself was also incredibly beautiful for swimming. If necessary, you can rent a deck chair and a sunshade.
Many snorkelers come by boat around midday. Luckily the reef is roped to prevent ships from the shallow water. In the morning and afternoon, you can enjoy the reef much better than at noon. We came here twice, and midday was utterly crowded. For diving make reservations a day before. For the first dive, the company insists of diving directly at Anse Chastanet Bay to check your experiences. For all other spots, they go by boat which is worth to do. Even if only two divers booked a tour, it takes place. Another excellent spot for diving and snorkeling is in front of the Petit Piton.