Scuba diving - 'must try' experience in Phu Quoc island
	Top Vietnam Destinations: Unforgettable coral diving on Cham Islands in Hoi An

Hon Mun Island, located in Nha Trang Bay, remains one of the country's premier diving sites thanks to its rich biodiversity. The area features hundreds of species of hard and soft corals alongside numerous rare marine creatures. Excellent underwater visibility allows both certified divers and snorkelers to admire vibrant coral formations, while calm summer seas provide favorable conditions for water-based activities.

Colorful coral reefs beneath the crystal-clear waters of Hon Mun Island, Nha Trang. (Photo: Collected)

About 15 km from Hoi An Ancient Town, Cu Lao Cham is recognized by UNESCO as a World Biosphere Reserve. Its shallow coral reefs are easily accessible, enabling visitors to observe colorful corals and schools of tropical fish without venturing far from shore. Beyond marine exploration, the island also offers traditional fishing villages, fresh seafood, and a peaceful coastal atmosphere. Covering roughly 5,000 hectares, the archipelago supports hundreds of coral reefs, seagrass beds, seaweed fields, and abundant marine life.

Cu Lao Cham is home to hundreds of coral reefs and diverse marine ecosystems across its 5,000-hectare area (Photo: Collected).

Known as Viet Nam's 'Pearl Island,' Phu Quoc offers numerous coral-viewing locations, including Hon Mong Tay Island, Hon Gam Ghi Island, Hon May Rut Island, and the An Thoi Archipelago. Clear waters and moderate depths make these sites suitable for beginners as well as experienced divers. In recent years, the island has expanded its marine tourism services, giving travelers more options for ocean discovery.

The An Thoi Archipelago is one of Phu Quoc's most famous coral-viewing destinations (Photo: Collected).

Vinh Hy Bay, situated next to Nui Chua National Park in Khanh Hoa Province, is widely regarded as one of Viet Nam's most scenic coastal areas. In addition to dramatic mountains and turquoise waters, it boasts healthy coral ecosystems that can be explored by snorkeling, scuba diving, or glass-bottom boat tours. Many coral reefs here have retained their natural beauty thanks to relatively well-preserved marine environments.

Coral reefs in Vinh Hy Bay have remained largely untouched thanks to well-preserved marine environments (Photo: Collected).

Con Dao is another standout destination for diving enthusiasts. Its exceptionally clear waters support diverse marine habitats, with sites such as Bay Canh Island, Hon Cau Island, and Hon Tai Island sheltering colorful corals, tropical fish, and rare marine species. Visitors often praise the islands for their unspoiled landscapes, while the archipelago also offers opportunities to learn about its history, culture, and unique natural heritage.

Bay Canh Island features a remarkably diverse underwater ecosystem. (Photo: Collected).

As nature-based tourism continues to gain popularity, coral reef diving has become one of the most sought-after summer activities in Viet Nam. From Hon Mun Island and Cham Islands to Phu Quoc, Vinh Hy, and Con Dao, each destination showcases distinctive underwater landscapes that highlight the country's remarkable marine biodiversity and strengthen the appeal of its coastal tourism in summer 2026.

The Best Places For Scuba Diving In Vietnam As the heat rises, plenty of adventurous beachgoers head to the ocean floor, looking for interesting animals and other small treasures.

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