Shark Bay (Ao Thian Og) | Koh Tao

Shark Bay (Ao Thian Og) – Koh Tao’s Best Spot for Shark Snorkeling

Shark Bay, also known as Ao Thian Og, is one of Koh Tao’s most famous snorkeling and diving locations, named after the blacktip reef sharks that frequent its waters. The bay features crystal-clear turquoise water, a white sandy seabed, and vibrant coral reefs, making it a must-visit for nature lovers and adventure seekers.

Location and Overview

• Where: Southeastern coast of Koh Tao, Thailand.
• Distance:
  • 10-minute drive from Mae Haad Pier.
  • 15-minute drive from Sairee Beach.
• Best Time to Visit: Early morning (7:00 AM – 10:00 AM) for shark sightings and fewer crowds.
• Entrance Fee:
  • Free if accessed by boat or kayak.
  • 100–200 THB per person if entering through a private resort (such as Haad Tien Beach Resort).

Why Visit Shark Bay?

• Swim with Blacktip Reef Sharks – Safe, harmless sharks measuring 50–150 cm long.
• One of the Best Snorkeling Spots on Koh Tao – Home to parrotfish, angelfish, butterflyfish, and sea turtles.
• Beautiful White Sand Beach – Secluded and perfect for relaxing.
• Easy Kayaking Access – Rent a kayak and explore the bay at your own pace.

Things to Do at Shark Bay

1. Snorkeling with Blacktip Reef Sharks

• Best Time: 7:00 AM – 10:00 AM (most active time for sharks).
• Best Spot: About 50–200 meters from the shore, near the coral reef.
• Are They Dangerous? No! Blacktip reef sharks are harmless to humans and usually swim away if approached too closely.

2. Swimming in Crystal-Clear Waters

• The bay has a soft, sandy seabed and gentle waves, making it great for casual swimming.

3. Kayaking and Paddleboarding

• Rent a kayak or paddleboard and explore nearby coves.
• Paddle to Ao Leuk Bay, another great snorkeling location.

4. Scuba Diving

• While mostly a snorkeling destination, some diving trips visit Shark Bay for deep-water coral and marine life exploration.

5. Relax on the Beach

• The white sandy shore and palm trees create a peaceful setting.
• Since Shark Bay is part of a private resort, it is quieter and less crowded than other Koh Tao beaches.

Best Time to Visit

• Morning (7:00 AM – 10:00 AM) – Best time to see sharks and enjoy calm waters.
• Afternoon (3:00 PM – 5:00 PM) – Fewer people, great for photography and relaxing.

Where to Stay Near Shark Bay

Luxury

• Haadtien Beach Resort – Private bungalows with direct beach access.
• Jamahkiri Resort & Spa – Offers a private snorkeling area with stunning views.

Mid-Range

• Beach Club by Haadtien – Affordable rooms with beachside dining.

Budget

• Assava Dive Resort – Simple bungalows near the bay with snorkeling tours available.

How to Get to Shark Bay

• By Motorbike or Taxi – A 10-minute drive from Mae Haad Pier (steep roads).
• By Kayak – Rent from Ao Leuk Bay and paddle to Shark Bay.
• By Boat Tour – Many snorkeling tours include Shark Bay as a stop.

Final Thoughts

Shark Bay is one of the best places in Thailand to swim with harmless reef sharks in their natural habitat. With its stunning waters, vibrant marine life, and peaceful surroundings, it’s a must-visit for snorkeling enthusiasts and nature lovers.