Scuba Diving at Ang Thong Marine Park

Diving atAng Thong Marine Park (Thailand)

Established as a protected zone, Ang Thong Marine Park, an archipelago of 42 islands, lies northwest of Koh Samui in the Central Gulf Coast of Southern Thailand. Its designation as a National Marine Park preserves an environment of dramatic limestone cliffs and rich underwater ecosystems. This area has evolved into a sought-after destination for divers, offering a glimpse into a well-preserved natural habitat.

Evening condition tracking at Ang Thong Marine Park features an air temperature of 29.9°C. We have recorded wave heights measuring 0.22m during this period. These figures outline the environmental parameters currently present.

Dive Site Coordinates

9.7996, 99.7137

Dive Site Characteristics

OceanSandy Bottom

Key Dive Site Facts

Max Depth16m / 52ft
Entry TypeBoat
Water Typesalt
Dive TypesCave, Reef

Dive Site Overview

Ang Thong Marine Park's underwater environment unveils a captivating mosaic of marine topography. Descending beneath the surface, divers find a varied landscape, shaped by vibrant coral gardens, dramatic rock formations, and intriguing sea caves.

Exploration of numerous natural swim-throughs is common, especially at sites featuring large boulders and extensive rocky terrain. Koh Yippon stands out for its impressive granite formations and a labyrinth of crevices, inviting closer inspection. Meanwhile, adjacent Koh Yippon Lek presents extensive soft coral formations and expansive anemone fields in shallower sections, offering significant photographic opportunities.

These areas generally provide recreational dive depths, typically ranging from 5 to 25 m (16 to 82 ft), suiting various certification levels. Calm conditions are often present due to the proximity of many islands, creating naturally sheltered spots that contribute to clearer waters and enhanced visibility.

This geological diversity nurtures a thriving ecosystem, where the interplay between the rocky structures and the abundant reef organisms defines many dives. The park's protected status helps maintain these intricate habitats, turning each descent into an engaging study of marine biodiversity.

Best Time to Dive

Optimizing a dive trip to Ang Thong Marine Park often involves considering the seasonal climate patterns, with the best diving typically occurring from March to October. During these months, the dive scores frequently rate as 'Excellent' or 'Good'. Air temperatures remain consistently warm, averaging between 27-29°C (81-84°F) throughout the year. Rainfall is notably lower from January to April, generally around 1-2 mm, then increases to 4-6 mm during the extended best diving season. Wave heights are also typically lower from March to October, contributing to more comfortable boat rides and surface conditions. Conversely, November and December see slightly increased wave activity and higher rainfall, which can affect visibility and overall dive conditions.

Jan: GoodScore: 8/10
Feb: ExcellentScore: 9/10
Mar: ExcellentScore: 9/10
Apr: ExcellentScore: 9/10
May: GoodScore: 8/10
Jun: GoodScore: 8/10
Jul: GoodScore: 8/10
Aug: GoodScore: 8/10
Sep: GoodScore: 8/10
Oct: GoodScore: 8/10
Nov: GoodScore: 7/10
Dec: GoodScore: 7/10
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Excellent
Good
Moderate
Poor
Unsafe

Climate Historical Averages

Monthly records compiled from satellite and marine observation nodes over the last 3 years. Data provided by Open-Meteo and MET Norway.

Month
Air Temp
Max Waves
Wind Speed
Rain
January27°C0.6m24 km/h1.0 mm
February28°C0.4m22 km/h2.0 mm
March28°C0.4m22 km/h0.9 mm
April29°C0.3m20 km/h1.6 mm
May29°C0.3m22 km/h6.2 mm
June29°C0.5m27 km/h4.0 mm
July28°C0.4m28 km/h5.2 mm
August28°C0.4m25 km/h4.8 mm
September28°C0.5m27 km/h5.8 mm
October28°C0.3m21 km/h9.8 mm
November27°C0.6m26 km/h9.8 mm
December27°C0.6m25 km/h5.0 mm

Dive Experience & Conditions

Beginning a dive in Ang Thong Marine Park often leads into gentle conditions, making it suitable for beginner to intermediate divers. During the descent, visibility varies, commonly ranging from 10 to 20 meters, influenced by recent weather and seasonal changes. Divers typically explore depths ranging from 5 to 25 meters. Specific sites like Koh Yippon Lek reach a maximum depth of 18m, revealing extensive soft coral formations and anemones close to the surface. Other locations, such as Koh Yippon, feature rocky structures and swim-throughs for more experienced divers. Expect calm to moderate currents throughout most of the park, which rarely present significant challenges.

Dive Difficulty & Safety Guidelines

While Ang Thong Marine Park is generally recognized for its gentle diving conditions, divers should always adhere to standard safety protocols. The park is not typically known for strong currents or extreme depths, which reduces some inherent risks. Maintaining proper buoyancy control is crucial to protect the well-preserved coral reefs and avoid disturbing delicate marine life. Always dive within your certified limits and follow your dive guide's instructions, especially when navigating areas with rocky formations or potential swim-throughs. As a protected area, respecting the marine environment by not touching or collecting marine organisms is a primary guideline.

Recommended Equipment

No verified equipment items yet.

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Verified equipment recommendations for this dive site are being reviewed and may be added as additional source checks are completed.

Recommended Dive Suit

Subtle variations in currents or depth can sometimes influence perceived water temperature.

Dive skin or rash guard tends to perform well in water temperatures like those currently observed here. Forecast models show minimal temperature variation in the coming days.

Current temperature readings suggest that the water at Ang Thong Marine Park is around 32°C (89°F). Surface air temperatures are resting at 30°C (86°F).

Conditions last reviewed: 18:00 using the latest environmental data.

Dive Logistics & Preparation

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Hyperbaric Chamber

Check local Thailand medical facilities.

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Entry Requirements

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Currency

THB

Nearest Airports

Nearest airports to help plan travel to this dive area.

✈️Samui International AirportUSM
47 km
✈️Surat Thani AirportURT
97 km
✈️Chumphon AirportCJM
108 km

Marine Life at Ang Thong Marine Park

The underwater landscape supports a wide array of marine species, making each dive a potential encounter with diverse life. Gliding through the coral gardens, divers might spot blue-spotted stingrays or discover cuttlefish moving gracefully. Moray eels often peek from crevices, while sea turtles are occasionally observed in the shallower sections. The area also hosts large schools of fusiliers, alongside interesting species like razor fish and various wrasse and parrotfish. Anemonefish families are common, and there's a chance to encounter larger pelagics such as Giant barracuda and even Blacktip reef sharks, particularly on quieter sites.

Dive Centers Near Ang Thong Marine Park

Koh Chang Divers

Koh Chang Divers

Thailand32.2 km away

Unverified 4.9
Scuba Birds Diving Center

Scuba Birds Diving Center

Thailand33.6 km away

Unverified 4.9
Pura Vida Diving

Pura Vida Diving

Thailand34 km away

Unverified 5
Roctopus Dive Center

Roctopus Dive Center

Thailand35.7 km away

Unverified 4.9

Frequently Asked Questions

What is the typical depth range for diving in Ang Thong Marine Park?

Dives in the park generally cater to recreational limits, with depths ranging from 5 to 25 meters (16 to 82 ft). This range accommodates both beginner and intermediate divers, allowing for ample bottom time and exploration.

What kind of marine life can I expect to see?

Divers often encounter a diverse range of marine life including blue-spotted stingrays, cuttlefish, and moray eels. Schools of fusiliers are common, and there's also the chance to see sea turtles, Giant barracuda, and Blacktip reef sharks.

Are there any specific dive sites recommended for beginners?

Many sites within Ang Thong Marine Park are suitable for beginners due to gentle conditions. Koh Yippon Lek, known for its soft coral and shallower maximum depth of 18m, is often a popular choice for those new to diving.

What are the typical water conditions like?

The park generally features gentle conditions and is not known for strong currents, making it a relaxing dive experience. Visibility typically ranges from 10 to 20 meters, though this can vary with seasonal weather patterns.

How do I get to Ang Thong Marine Park for a dive trip?

Most scuba diving excursions to Ang Thong Marine Park depart from nearby islands such as Koh Samui or Koh Phangan. Day trips are a common way to access the park's dive sites, often via speed boat.

Is Ang Thong Marine Park a protected area?

Yes, Ang Thong Marine Park is a designated protected area. This status helps preserve its coral reefs and marine life, providing divers with a relatively unspoiled underwater environment.

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