Soi Sim is an soil island 400 m away from Ti Tốp Island, and 7-8 km from the Bãi Cháy Tourist Wharf. In the island there are many ancient trees. The Hạ Long Bay Management Board is going to build a system of guesthouses equipped with modern facilities.

At present, a small beach has been improved and upgraded, adding more charm to the attractive holiday resort.