Grand Anse, Seychelles offers 13 beaches perfect for sunbathing, surfing, swimming, and more. Grand Anse, Grand Anse Praslin, Seychelles, is known for its stunning beaches like Anse Lazio and the UNESCO World Heritage Site Vallée de Mai. The best time to travel to Grand Anse, Seychelles, is from April to May or October to November, with average air temperatures around 27-30°C (81-86°F) and water temperatures about 28°C (82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!