Diving to explore the mysteries of the underwater world in Hainan. [Photo/en.explorehainan.com]

Hainan offers incredible ways to uncover the mysteries of its underwater world — from the comfort of transparent sightseeing submarines and personal submersibles to the more immersive experiences of snorkeling and scuba diving. 

Hainan's waters boast an average visibility of 8-15 meters, revealing a rich tapestry of colorful coral reefs and countless fish. Whether you're interested in day dives, the unique experience of night dives, scuba excursions, underwater sightseeing, or even deep-sea adventures, it's all possible here.

No matter how you choose to explore, a cool, blue underwater paradise awaits. It is filled with brightly colored tropical fish, living corals, sea turtles and a fascinating variety of deep-sea inhabitants! 

Top diving sites:

☛ Wuzhizhou Island

Address: Haitang Bay, Haitang district, Sanya, Hainan

☛ West Island

Address: Sanyawan Lu, Tianya district, Sanya, Hainan

☛ Yalong Bay

Address: No 100 Yalongwan Lu, Jiyang district, Sanya, Hainan

☛ Dadonghai

Address: Yuya Dadao, Jiyang district, Sanya, Hainan

☛ Taiyang Bay

Address: Southwest of Yalong Bay National Tourism Resort, Sanya, Hainan

☛ Boundary Island

Address: Niuling exit of Hainan East Coastal Highway, Lingshui county, Hainan

☛ Jiajing Island

Address: Haitian Lu, Shimei Bay, Wanning, Hainan

☛ Yunlong Bay

Address: Tongguling Tourist Area, Longlou town, Wenchang, Hainan

Tips:

1. Pay attention to weather conditions. Diving activities may be canceled or delayed in case of strong winds, heavy rain, thunderstorms, or other severe weather. Please confirm the schedule in advance with the operating company.

2. Get adequate rest and sleep before the activity.

3. Follow your dive operator's instructions on what to wear under the wetsuit. Avoid wearing anything that might interfere with the proper fit of the diving equipment.

4. Please follow all the instructions given by your certified dive instructor and adhere to the established safety procedures.

5. Pay attention to your own health and safety. Visitors with high blood pressure, heart conditions, epilepsy, recent surgery, or those who are pregnant, under the influence of alcohol, or otherwise in poor health should not participate in diving.

6. Dive within your limits. Never push beyond your comfort zone or training.

7. Be mindful of marine life. Avoid touching or disturbing corals and marine animals.

en.explorehainan.com contributed to the story.