Wildlife of Phang Nga Bay – Monkeys, Eagles and Dugongs

Phang Nga Bay is not just about limestone karsts and James Bond. It is a rich ecosystem of mangroves, coral reefs, and marine creatures. The bay is part of Ao Phang Nga National Park, which protects many rare animals and plants. This guide describes the wildlife you are most likely to see during your boat tour – and a few rare ones you might be lucky enough to spot. No exaggerated promises, just honest information.

Mammals – Monkeys, Otters and Dugongs

Crab‑eating macaques are the most common animals you will see. They live in troops of 20‑50 individuals, often sitting on the limestone cliffs or along the shores of islands like Koh Panyee and Panak Island. They are called “crab‑eating” because they eat crabs, shellfish, and fruits. These monkeys are intelligent but can be aggressive if fed. Do not offer them food. Keep your bags closed – they know how to unzip them. If you see a monkey showing its teeth, that is a sign of aggression, not a smile.

Smooth‑coated otters live in the mangrove forests near the mainland. They are shy and rarely seen by tourists. Your best chance is early morning before the boats start moving. They swim in family groups and eat fish, crabs, and frogs.

Dugongs (sea cows) are the most famous rare mammal of the bay. They feed on seagrass in shallow, protected areas. The dugong population in Phang Nga Bay is small – maybe 50‑100 individuals. Sightings are very rare. You are more likely to see them from an airplane than from a tour boat. But if you are lucky, you may see a snout breaking the surface. Do not chase them – it stresses the animals. The national park has designated seagrass protection zones where speedboats are not allowed.

Birds – Eagles, Kingfishers and Herons

White‑bellied sea eagles are the most spectacular birds of the bay. They have a white head, chest, and tail, with grey wings. Their wingspan can reach two metres. You will often see them circling high above the karsts, looking for fish. They nest on the cliffs of the larger islands. If you hear a loud, goose‑like honk, look up – that is their call.

Brahminy kites are smaller eagles with chestnut‑brown bodies and white heads. They are more common than the sea eagles and often perch on dead trees near the water. Their call is a high‑pitched whistle. Other birds to look for: collared kingfishers (bright blue and orange), little terns (diving for fish), and Pacific reef herons (grey or white, standing motionless on rocks).

The best time for birdwatching is early morning (7‑9 AM) or late afternoon (4‑6 PM). During the midday heat, birds hide in the shade. Bring binoculars if you have them.

Reptiles – Monitors, Snakes and Turtles

Water monitor lizards are common in the mangroves and on some islands. They can grow up to two metres long, but most are around one metre. They are shy and will usually run away when they see a boat. However, they can swim and sometimes climb the limestone cliffs. Do not approach them – they have sharp claws and teeth, and their bite can cause infection. Monitors are harmless if left alone.

Sea turtles – hawksbill and green turtles – occasionally nest on the beaches of the bay’s outer islands. You might see one swimming near the surface if you are lucky. The best chance is around the islands near Krabi (like Koh Hong). Turtles are protected by law. If you see one, keep your distance and do not touch it.

Banded sea kraits (a type of sea snake) live in the bay. They are venomous but not aggressive. They come to land to lay eggs. If you see one in the water or on a rock, simply swim away slowly. No tourist has been bitten in decades. The snakes are more afraid of you than you are of them.

Marine Life – Fish, Crabs and Coral

The underwater world of Phang Nga Bay is not as rich as the Andaman Sea islands farther out (like the Similans). However, you can still see:

• Butterflyfish – bright yellow and white, often in pairs.
• Clownfish – hiding in anemones (rare, but present around Koh Khai).
• Blue crabs – scuttling on the muddy bottom.
• Rainbow cuttlefish – changing colours, seen in shallow water.
• Parrotfish – large, colourful, and noisy (they crunch coral).

The best snorkelling spots are around Hong Island and Koh Khai. The coral is mostly fringing reef – not as spectacular as the Similans, but adequate for beginners. For serious divers, Phang Nga Bay is not the best choice. The water visibility is usually 5‑10 metres. Go to the Similans or Phi Phi for clear water.

Flora – Mangroves, Nipa Palms and Seagrass

Mangrove forests line much of the mainland coast of Phang Nga Bay. The most common species are Rhizophora (red mangrove) with its stilt roots, and Avicennia (black mangrove) with its breathing tubes (pneumatophores). Mangroves are nurseries for fish and protect the coast from erosion. You can paddle a kayak through some mangrove channels, especially on Panak Island.

Nipa palms grow in the brackish water behind mangroves. Their large, feathery leaves are used for thatching and making sugar. Seagrass beds are underwater meadows that feed dugongs. They are found in shallow, sheltered bays. Do not anchor your boat on seagrass – it tears the plants and destroys the habitat.

On the limestone cliffs, look for cycads (ancient plants that look like small palms) and orchids that grow on the rock surface. Never pick any plant – many are protected species.

Best Time to See Wildlife

November to February is best for birdwatching because migratory birds visit from Siberia and China. March to May is hot, and many animals hide during midday. June to October is the rainy season – monkeys and birds are more active in the cooler hours after rain, but boat tours may be cancelled due to rough seas. For dugongs, the best time is early morning (6‑8 AM) from January to March, when the wind is calm and the water is clear. See our best time to visit guide for more details.

How to Observe Wildlife Responsibly

• Do not feed any animal – it causes dependence and aggressive behaviour.
• Keep a distance of at least 10 metres from monkeys, monitors, and dugongs.
• Do not use flash photography – it disturbs birds and sea creatures.
• Do not touch or step on coral – even a touch can kill a coral polyp.
• Do not throw food or rubbish into the water – it can kill animals that eat it.
• If you see a sea turtle or dugong, ask your boat driver to slow down and keep a distance.

Thai people have a saying: “Love nature, do no harm.” Follow these rules, and the bay will remain rich for future visitors.

Wildlife Hotspots in Phang Nga Bay

• Koh Panyee – monkeys on the cliffs behind the village.
• Panak Island – monitor lizards and kingfishers in the mangroves.
• Hong Island – white‑bellied sea eagles and coral reef fish.
• Koh Khai – clownfish and butterflyfish easy to see from the beach.
• Around Ko Tapu – sea eagles circling overhead.

Your tour guide may have additional local knowledge. Ask them where they saw animals recently.

Frequently Asked Questions About Wildlife

Q: Are the monkeys dangerous?
A: They can bite if you get too close or try to feed them. Keep a safe distance and do not smile showing your teeth (they see it as a threat).

Q: Can I swim with dolphins or dugongs?
A: No. It is illegal and harmful to the animals. Observe from the boat only.

Q: What should I do if I see a sea snake?
A: Do nothing. It will swim away. They are not aggressive unless provoked.

Q: Is there any dangerous wildlife on land?
A: Snakes (pythons and cobras) live on some islands, but they avoid humans. Do not walk into tall grass or dark caves alone.

Q: Can I bring a drone to see wildlife from above?
A: Drones are not allowed in the national park without a permit. Even with a permit, flying close to animals stresses them. Leave the drone at home.

Q: Where can I see fireflies?
A: Fireflies live in mangroves. Take a specialised night tour from Phang Nga town (not included in standard tours).

Final Word From Local Experts

Phang Nga Bay is a protected area for a reason. The wildlife here has survived despite increasing tourist numbers. When you visit, you are a guest in their home. Watch without touching, respect their space, and take only photos. The monkeys will steal your snacks if you let them. The eagles will soar overhead. And if you are very, very lucky, a dugong may surface nearby. That moment will stay with you long after you leave.

Remember the Thai saying: “Where there is water, there are fish.” The bay is full of life. Enjoy it responsibly.

— Written by the team at VisitJamesBondIsland.com