Bai Su is a reef and cave site located off Whale Island, Vietnam, accessible only by boat. The topography features coral formations, canyons, and a large swim-through. Divers and snorkellers can expect depths ranging from 5 to 18 metres, with an average depth of 10 metres. Conditions are generally mild, with visibility between 5 and 25 metres and water temperatures ranging from 25C to 29C. The site is suitable for beginners and supports night diving, with typical dives lasting 45 minutes. The habitat supports a variety of reef fish and invertebrates. Divers should be aware of the presence of stonefish.

Phat Wall is a wall dive located 1000 metres off Whale Island. The site features a bottom composition of rocks and reef, reaching depths between 5 and 18 metres with an average depth of 10 metres. Access is by boat only. Divers should be aware of moderate currents and the potential for strong currents at this location. Visibility ranges from 5 to 25 metres, and water temperatures fluctuate between 25C and 29C throughout the year. The site is suitable for beginners and supports night diving, with typical dive durations of 40 minutes. The habitat supports various reef fish and invertebrates typical of the region.

Whale Island Housereef offers a varied underwater landscape featuring reef, wall, and drop-off terrain. Divers can explore depths between 5 and 15 metres, with an average depth of 10 metres. The site is accessible via shore entry and is suitable for beginners, though moderate currents create drift diving conditions. Visibility typically ranges from 10 to 30 metres. Water temperatures remain between 25 and 30 degrees Celsius. Hazards include boat traffic, jellyfish, sharp coral, and stonefish. Night diving is available at this location. Divers should wear hard-soled booties to protect against stonefish in the shallows and use an SMB when surfacing due to local boat activity.

Hon Bac in Nha Trang, Vietnam, offers a diverse underwater landscape featuring a reef, wall, and cave system. Suitable for beginners, the site reaches depths between 5 and 30 metres, with an average depth of 15 metres. Access is by boat only, and divers should be prepared for moderate currents. Visibility typically ranges from 10 to 30 metres. The site supports a variety of reef fish and invertebrates common to the region. Divers should exercise caution regarding sea urchins, sharp coral, and stonefish. Facilities at the location include parking, toilets, showers, and a cafe.

Hon Bac Island is a reef site located in Nha Trang, Vietnam, suitable for beginner divers. The site features a varied topography reaching depths of up to 25 metres. Access is strictly by boat, and divers should remain aware of boat traffic and mild currents in the area. Water temperatures are consistent, ranging from 24C to 28C throughout the year. As a reef environment, the site provides a stable platform for underwater exploration, though divers should exercise caution regarding local marine life and currents. The site is well-regarded for its accessibility and consistent conditions for those developing their diving skills.

Nha Trang features a varied underwater landscape that combines reef, wall, and drift diving. Divers can explore depths ranging from 5 to 25 metres, with an average depth of 15 metres. The site is accessible only by boat, located 10 kilometres from the shore. Conditions include moderate currents and visibility between 10 and 30 metres. Water temperatures remain between 24 and 28 degrees Celsius throughout the year. Due to the presence of loose fishing lines and nets, divers must be aware of entanglement hazards. Guided tours are available for both day and night dives, and the site is suitable for beginners.

Lighthouse Bay Reef in Nha Trang offers a forgiving environment for beginner divers. The site features depths ranging from 8 to 15 metres and experiences mild currents, allowing for relaxed exploration. Visibility typically spans 10 to 30 metres, providing clear views of the reef structure. Water temperatures remain between 25 and 29 degrees Celsius throughout the year. Access to this site is exclusively by boat. Divers should maintain awareness of their surroundings to avoid entanglement and exercise caution regarding overhead environments. Species recorded around this area include wrasses, Moorish idols, Valentini pufferfish, Clark's anemonefish, and various lionfish and moray species.

Mama Han is a reef site located in Nha Trang, Vietnam, suitable for beginner divers. The site features a depth range typically between 1 and 20 metres, with an average depth of 10 metres. Access to the site is by boat only. Conditions are generally mild, with visibility ranging from 8 to 25 metres and water temperatures fluctuating between 25C and 29C throughout the year. Species recorded around this area include wrasses, longhorn cowfish, zebra lionfish, threadfin butterflyfish, Clark's anemonefish, and various nudibranchs such as the pustular phyllidia and varicose wart slug.