Oceanatik logo
Oceanatik logo
HomeDestinationsDive SmartScuba Blog
Ko Haa Yai 5 Cathedral

Ko Haa Yai 5 Cathedral

Krabi, Thailand

Depth
Depth Icon

36m

Visibility
Visibility Icon

15m - 45m

Entry
Boat Entry Icon

Boat

Experience Level

Advanced

Ko Haa Yai 5 Cathedral

Krabi, Thailand

Ko Haa Yai 5 Cathedral
Depth
Depth Icon

36m

Visibility
Visibility Icon

15m - 45m

Entry
Boat Entry Icon

Boat

Experience Level

Advanced


About Ko Haa Yai 5 Cathedral

The Cathedral as it is known can be found to the South West of Koh Lanta and can be reached via a 30 minute boat ride. As the name implies, Ko Haa Yai is home to a beautiful underwater cathedral. Make your way down to a depth of 20 meters to where you will find several cavern entrances leading to this cathedral. Also explore a nearby cave system. Maximum depth is 36 meters and currents may be strong and unpredictable, thus Ko Haa Yai 5 is recommended for advanced leb=vel divers only. This dive is often used for photography and night diving due to the spectacular displays of marine and coral life to be found here.

Ko Haa Yai 5 Cathedral Dive Info

Terrain & Features

Reef, Cave, Deep, Shark, Drift, Other

Entry Type

Boat

Max Depth

36m

Visibility Range

15m 45m

Experience Level

Advanced

Best Gas Mix

21% – 30%

O2

14% at 34m / 32%

O2
Multi-Level Dive Planner
Photo gallery

No photos yet.

Be the first to share your shots from Ko Haa Yai 5 Cathedral. Your photos help other divers plan their trip.

Marine Life

  • Banded Sea Snakes
  • Eels
  • Glass Fish
  • Groupers
  • Lion Fish
  • Pelagic Fish
  • Rays
  • Reef Sharks
  • Scorpion Fish
  • Turtles
  • Various
Weather Conditions

Weather information for Ko Haa Yai 5 Cathedral coming soon.

Dive Operators near Ko Haa Yai 5 Cathedral

We couldn’t find dive operators near “Ko Haa Yai 5 Cathedral”. You can browse all operators in Thailand here.

Location

Location details missing.

Dive Site Hazards

  • Hidden Depth Variations — Complex reef topography can conceal depth changes, leading to unintended profile variations.

  • Distraction from Marine Activity — High fish activity can distract divers and delay depth or gas awareness.

  • Rapid Surge Direction Changes — Surge near reef structures can reverse direction quickly, pushing divers sideways into unexpected areas.

  • Remote Silt Disturbance — Silt can be disturbed metres away from the source.

  • Rapid Stress Escalation — Stress can increase sharply when visibility or navigation degrades.

  • High Cognitive Load Navigation — Complex passages increase mental workload even on a line.

  • Gradual Narcosis Onset — Narcosis may develop slowly, making self-assessment unreliable.

  • Task Fixation at Depth — Cognitive narrowing at depth can reduce awareness of time and ascent rate.

  • Increased Gas Density Breathing Load — Higher gas density at depth increases work of breathing.

  • Situational Awareness Loss — Divers may fixate on sharks and lose depth or position awareness.

  • Subtle Behavioural Shifts — Changes in shark behaviour may be missed without active observation.

  • Blue-Water Reference Loss — Lack of visual references increases ascent and descent instability.

  • Eddy Pull-Off Zones — Eddies behind structures can pull divers away from the main drift line.

  • Delayed Surface Pickup — Strong current can exceed surface tracking assumptions, delaying boat pickup.

  • Vertical Current Shear — Currents may vary by depth, causing vertical separation even when divers stay together.

Discover More

Discover Thailand

South America - Brazil

Brazil’s vast coastline and tropical islands make it a captivating destination for scuba diving enthusiasts. From the vibrant reefs of the Abrolhos Archipelago to the historic wrecks of Recife and the dramatic underwater cliffs of Fernando de Noronha, Brazil offers dive experiences for every level. With warm waters, incredible marine biodiversity, and breathtaking underwater landscapes, Brazil is a must-visit destination for divers seeking adventure, beauty, and cultural charm both above and below the surface.

Learn More

Asia - Philippines

The Philippines, a tropical paradise nestled in the heart of the Coral Triangle, is a premier destination for scuba diving enthusiasts. With over 7,000 islands, it boasts pristine coral reefs, breathtaking underwater landscapes, and a rich diversity of marine life. From the iconic Tubbataha Reefs to the thresher shark encounters in Malapascua, the Philippines offers unparalleled diving experiences for both beginners and seasoned divers. Whether exploring shallow coral gardens or delving into historic WWII wrecks, every dive unveils a new world of adventure.

Oceania - Vanuatu

Vanuatu, a stunning South Pacific archipelago, offers some of the most diverse and exhilarating scuba diving experiences in the world. With its warm tropical waters, vibrant coral reefs, and historic wrecks like the famous SS President Coolidge, Vanuatu is a haven for divers of all skill levels. From exploring volcanic underwater landscapes to encountering rich marine biodiversity, Vanuatu’s pristine dive sites provide unforgettable adventures, all set against a backdrop of lush islands and tranquil lagoons.