Guangxi Province dive sites

Weizhou Island hosts the best-preserved and most northerly significant coral reef ecosystem in the South China Sea, with over 46 coral genera recorded by marine biologists. The reefs grow on volcanic basalt substrate, creating a unique combination of geological and biological formations not found elsewhere in China. The island's relatively low population density and distance from major industrial centres have helped preserve water quality and coral health.

Weizhou Island is reached by ferry from Beihai city in Guangxi Province. High-speed ferries operate daily with a crossing time of approximately one hour. Beihai is accessible by air from major Chinese cities and by high-speed rail. Ferries can sell out during peak holiday periods, especially Chinese National Day and summer holidays, so advance booking is recommended. The island has basic tourist infrastructure including hotels, restaurants, and scooter rentals.

Both are viable, but the island is particularly well-suited to snorkelling due to the shallow nature of many reef areas and the variable visibility. The best coral formations sit at depths of 3-12 metres, easily viewable from the surface on clear days. Scuba diving is available through local operators but infrastructure is basic compared to international standards. The volcanic rock formations create interesting shallow swim-throughs that are enjoyable for both snorkellers and divers.