Overview Soi Sim Island Soi Sim Island is a charming destination in Halong Bay, Vietnam, that attracts tourists with its serene ambiance and lush greenery. The island is an ideal spot for nature lovers and offers opportunities for hiking, birdwatching, and enjoying the stunning panoramic views of the bay. Visitors can also relax on the … Continue reading Soi Sim Island, Soi Sim Island in Halong Bay