Aqualung is a pinnacle and reef site in Ang Thong Marine Park, Thailand, offering depths between 5 and 40 metres. The site is suited for intermediate divers who can manage moderate currents that frequently affect the structure. Visibility varies from 5 to 20 metres, and water temperatures remain warm, ranging from 28C to 31C. Divers can explore the varied topography of the pinnacle, which supports a range of reef fish and invertebrates. Shore entry is available, though current conditions should be assessed before descent. Due to the presence of sharks and the potential for strong currents, maintain controlled movement and stay close to the reef structure throughout the 50-minute dive.

Ao Cheweng is a shore-accessible reef dive located in Ang Thong Marine Park. The site features a shallow profile with an average depth of 6 metres, ranging between 5 and 7 metres. This makes it a suitable location for beginner divers to practice buoyancy and navigation. Water temperatures remain warm throughout the year, typically between 28 and 31 degrees Celsius. Visibility varies from 3 to 10 metres, and divers should be prepared for moderate to strong currents. It is recommended to dive early in the morning to benefit from calmer surface conditions. On-site facilities include parking, toilets, showers, changing rooms, a rinse station, and equipment rental.

Crystal Bay in Ang Thong Marine Park is a shore-entry reef dive suitable for beginners. The site features a shallow start that transitions into deeper water, with an average depth of 10 metres and a maximum of 21 metres. Divers experience mild currents and visibility ranging from 5 to 20 metres. Water temperatures remain warm, typically between 28 and 31 degrees Celsius. The habitat supports a variety of reef fish and invertebrates. Hazards include occasional jellyfish and surf; divers should monitor the shore break carefully before entry. Facilities at the site include parking, showers, and a cafe. Typical dives last 45 minutes, with early morning visits recommended for optimal visibility.

Shark Island in Ang Thong Marine Park offers a straightforward reef dive suitable for beginners and those building underwater confidence. The site features shallow, calm waters with temperatures typically ranging between 28C and 31C throughout the year. Access is by boat, and divers should consult their operator regarding current strength and visibility, as these conditions vary. The reef environment supports a variety of reef fish and invertebrates characteristic of the Gulf of Thailand. Early morning visits often provide calmer surface conditions and improved light for exploring the reef structure.

Koh Mat Lang is a shallow reef site located within Ang Thong Marine Park, offering a gentle environment for beginners. The reef structure sits at depths between 2 and 9 metres, with an average depth of 5 metres. Access to the site requires a boat. Conditions are generally calm with mild currents, though visibility can fluctuate between 3 and 10 metres. Divers and snorkellers should be mindful of sharp coral and rocks, which can cause cuts. Due to variable visibility, it is recommended to stay close to a guide or group. Water temperatures remain warm throughout the year, ranging from 28 to 31 degrees Celsius.

Ban Tai Reef is a shallow shore-entry site located 50 metres from the coast within Ang Thong Marine Park. The reef is suitable for beginners, featuring an average depth of 2 metres. Divers can expect mild currents and visibility ranging from 2 to 10 metres. The site is well-supported by local facilities, including equipment rental, air fills, and guided tours. Due to the shallow nature of the reef, divers should be cautious of sharp coral. Typical dives at this location last approximately 45 minutes. The water temperature remains warm throughout the year, fluctuating between 28C and 31C.

Koh Tae Nai in Ang Thong Marine Park offers a combination of natural reef and artificial reef structures. Suitable for beginners, the site features shallow depths ranging from 2 to 7 metres with an average of 5 metres. Access is by boat, located 400 metres from shore. Divers and snorkellers can expect mild currents and visibility between 10 and 30 metres. The site is best visited in the morning to avoid afternoon wind chop. Hazards include sharp coral and potential jellyfish; always check with the boat crew regarding current conditions before entering the water.

Koh Te Nok in Ang Thong Marine Park features a combination of reef and pinnacle topography. The site ranges from a shallow reef at 5 metres to a maximum depth of 30 metres, with an average depth of 15 metres. Divers encounter mild currents and visibility between 5 and 25 metres. Boat access is required, and divers should be aware of surge near the pinnacle and at the surface. Species recorded around this area include wrasses, porcupinefish, groupers, and various butterflyfish. The site is suitable for beginner divers, with typical dive times of 60 minutes in warm water temperatures ranging from 28 to 31 degrees Celsius.