Dive Site: Racha Yai — Bay 3

About Racha Yai — Bay 3

Racha Yai — Bay 3 is a sheltered dive site located on Koh Racha Yai, south of Phuket, Thailand, renowned for its excellent diving conditions. This area is celebrated for its clear turquoise waters, making it a favorite for divers of all levels, including beginners and those undergoing training. The island itself is a popular destination accessible from Phuket, taking about 1.5 hours by larger local dive boats or half that time by speedboat. The topography of Bay 3 predominantly features hard coral reef slopes and a flat, sandy bottom within the bay, which naturally protects it from strong currents. Depths here are generally moderate, making it comfortable for various skill levels to explore the vibrant underwater landscape. Marine life at Bay 3 includes colorful schools of tropical fish and healthy coral gardens, particularly in the shallower zones. While specific seasonal highlights for Bay 3 are not detailed, the Racha Yai region generally offers consistent marine sightings throughout the year. The presence of yellow-lipped sea kraits, various nudibranchs, and spotfin lionfish can be observed, alongside other reef inhabitants. Diving here typically involves easy entries into calm waters, allowing for relaxed exploration of the coral formations and diverse fauna. The site's sheltered nature contributes to excellent visibility, making it a visually rewarding experience for observing the intricate reef life.

Dive site facts: Racha Yai — Bay 3

Depth

5–40 m (Racha Yai general)

Current

Mild to none

Visibility

15–40 m

Water temperature

27–31 °C

Entry

Boat

Level

Beginner to Experienced

Dive type

Reef, coral garden

Region / port

Phuket, Thailand

Coordinates

8.0451° N, 98.5119° E

Conditions & Currents

Racha Yai — Bay 3 benefits from its sheltered position within the bay, resulting in conditions largely free from strong currents. Divers can expect mild to negligible current, which makes for a relaxed and unchallenging dive experience. Visibility in the bay is typically excellent, often ranging from 15 to 40 meters, thanks to the calm conditions. This reduced water movement also means minimal surge, contributing to comfortable entries and exits from the boat. These gentle conditions are ideal for extended bottom times and easy navigation, making it a welcoming site for divers focusing on marine observation and photography without concern for strenuous exertion or complex gas planning.

Marine life & sighting chances

Yellow-lipped sea krait

occasional

Nudibranch

occasional

Spotfin lionfish

occasional

Barracuda

common

Octopus

occasional

Snapper

common

Clownfish

common

Shrimp

occasional

Pipefish

occasional

Cuttlefish

occasional

Parrotfish

common

Angelfish

common

Pufferfish

common

Butterflyfish

common

Dive profile & how the dive runs

Dives at Racha Yai — Bay 3 generally begin with a comfortable boat entry into calm, clear waters. Due to the sheltered nature of the bay and minimal currents, descents are typically easy. Divers can explore the gently sloping hard coral reef formations, observing various reef fish and smaller marine life in the shallows. The dive then progresses over a flat sandy bottom, maintaining a comfortable depth that is suitable for all levels. Navigation is straightforward within the bay's natural contours. The dive concludes with a safety stop along the reef slope or by following the ascent line, ensuring a relaxed exit back to the boat.

Underwater photography

Racha Yai — Bay 3 offers excellent opportunities for both wide-angle and macro underwater photography, especially given its consistent clear visibility and calm conditions. Wide-angle lenses are ideal for capturing the expansive hard coral gardens and schools of tropical fish against the bright turquoise background. For macro photography, focus on the intricate details of nudibranchs, various shrimps, and smaller reef inhabitants that are frequently found hidden within the corals and sandy patches. External strobes are highly recommended to bring out the true colors of the marine life and corals, particularly in deeper areas. Maintaining excellent buoyancy is key to avoiding disturbance of the delicate reef environment and capturing sharp, well-composed shots.

Combine with nearby dive sites

• Racha Noi

  Racha Noi, meaning 'small island', is the uninhabited southern counterpart to Racha Yai, located approximately 45 minutes further south of…

• Racha Yai — Bay 1

  Racha Yai Bay 1 is a highly sought-after dive destination located on the northeastern side of Racha Yai Island, south of Phuket.

• Racha Yai — Bay 2

  Shark Bay, known in Spanish as Bahia de Tiburones, is a celebrated dive site located off Wolf Island in the remote northern reaches of the…

• Siam Bay

  Shark Bay, known in Spanish as Bahia de Tiburones, is a celebrated dive site located off Wolf Island in the remote northern reaches of the…

• HTMS Sattakut Wreck

  The HTMS Sattakut Wreck is a 48-meter long, decommissioned U.S.

Getting there & logistics

Access to Racha Yai — Bay 3 is primarily via day boats from Phuket, with trips typically departing from Chalong Bay. The journey usually takes around 1.5 hours by larger local dive boats or approximately half that time by speedboat. Many dive operators offer two to three-dive day trips to the Racha Islands, often combining Bay 3 with other sites on Racha Yai or even a quick visit to Racha Noi for more advanced divers. Standard packages usually include equipment rental, meals, and hotel transfers from major areas like Rawai, Chalong, Kata, Karon, Patong, and Kamala. No specific permits or park fees are typically required for diving at Racha Yai itself.

Safety & environment

Diving at Racha Yai — Bay 3 is generally considered safe due to its calm and sheltered conditions, making it suitable for all levels. However, standard dive safety practices should always be adhered to, including proper buddy procedures and gas management. Divers should carry appropriate dive insurance to cover unforeseen circumstances. The nearest recompression chamber is located in Phuket, highlighting the importance of cautious diving and adherence to depth and no-decompression limits. It is always recommended to dive with reputable operators who prioritize safety briefings and provide experienced dive guides. Stay hydrated and avoid touching marine life to ensure both diver and ecosystem safety.

Who it suits — and who it doesn't

FAQ

Racha Yai — Bay 3 FAQ

Liveaboards diving Racha Yai — Bay 3

These liveaboards may visit Racha Yai — Bay 3 on selected itineraries — the exact dive sites depend on departure, weather and conditions.

Mandarin Queen 9

Thailand

26 guests37.5 m

Manta Queen 8

Thailand

24 guests

$127/day

The Junk

Thailand

18 guests33 m

$163/day

Deep Andaman Queen

Thailand

23 guests30.5 m

$194/day

Explorer

Thailand

16 guests25 m

$150/day

Andaman

Thailand

20 guests26 m

$108/day

Stingray

Thailand

8 guests24 m

$245/day

Seatopia

Thailand

24 guests24 m