Plage de Sinaî, a rugged black sand beach in Grand'Rivière, Martinique, offers a truly wild experience for adventurous travelers. Access is challenging, typically requiring a moderate to difficult hike through a sometimes-slippery trail or a boat trip, making it unsuitable for those with mobility issues or wheelchairs. While possible solo for experienced hikers, a guided trek or boat tour is recommended for safety and navigation. The best time to visit is during Martinique's dry season (December to May) to avoid muddy trails and rougher seas. There is no entrance fee, but transportation or guide costs apply. Plan for a half-day excursion, including travel time and 1-2 hours enjoying the beach's raw beauty. Visitors should come prepared with water, snacks, and sun protection as there are no facilities. Swimming can be hazardous due to strong currents, so caution is advised; it's primarily a destination for scenic enjoyment and photography.