Exploring Marine Life & Coral at Phi Phi Leh

The Most Beautiful Snorkeling Spots During the Clearest Water Season

Phi Phi Leh is one of the richest marine ecosystems in Krabi, known for its crystal-clear emerald water, vibrant coral reefs, and schools of colorful tropical fish. During the high season (around October–May), the sea becomes calm, the water turns exceptionally clear, and sunlight illuminates the underwater world beautifully.

Snorkeling around Phi Phi Leh does not require advanced skills — most spots are shallow, calm, and perfect for all ages.

Why is the Water at Phi Phi Leh So Clear?

• The island has no residents and no wastewater entering the sea

• Surrounded by limestone cliffs that block strong waves

• White sandy seabed that reflects light and enhances water clarity

• Marine protection regulations are taken seriously by the national park

During high season with clear skies, the underwater visibility becomes remarkably clear — you can see the sandy bottom, coral, and fish from the surface.

The Best Snorkeling Spots for Fish & Coral Around Phi Phi Leh

1) Loh Samah Bay

One of the most beautiful snorkeling spots on Phi Phi Leh, located behind the cliffs near Maya Bay. The depth is ideal — not too deep, not too shallow — making it perfect during high season.

Highlights

• Long stretch of healthy hard coral

• Clean white sandy patches that make spotting fish easy

• Common sightings: butterflyfish, parrotfish, sergeant major fish

• Water circulation keeps visibility high and reduces cloudiness

A great choice for beginners due to calm water and gentle currents.

2) Viking Cave (Outer Reef Area)

The shallow reef outside Viking Cave offers an abundance of marine life and interesting rock formations beneath the surface.

Highlights

• Large schools of fusilier fish swimming around the reef

• Table coral and brain coral scattered throughout the area

• Unique blue–green water color due to depth and sunlight reflection

Although entry into the cave is not allowed, the snorkeling area outside is exceptionally beautiful.

3) Pileh Lagoon (Outer Snorkeling Zone)

While the inside of Pileh Lagoon is mainly for swimming, the outer part near the lagoon entrance has coral formations and plenty of fish.

Highlights

• Multi-toned emerald and turquoise water

• Many small fish species including clownfish, butterflyfish, and parrotfish

• Occasional large schools of fish passing by

• Perfect underwater visibility during late morning

This spot is commonly included in tours with a 20–30 minute snorkeling stop.

4) Outer Area of Maya Bay

The outside of Maya Bay (not the swimming zone inside) has one of the richest varieties of fish and coral.

Highlights

• Vibrant fish swimming along coral ridges

• Extremely clear water during strong sunlight

• Clownfish among sea anemones found in several areas

• Mix of hard and soft coral in certain sections

A great spot for anyone who wants to see many types of fish in one snorkel session.

Best Time to See Fish & Coral Clearly

• 10:00 AM – 1:00 PM

Sunlight penetrates directly into the water, enhancing visibility and color.

• Best Months

November – April
Waves are calm, water stays clear, and weather is consistently good.

• Choose days with low wind

Windy conditions stir up sand and reduce visibility; fish also tend to hide in rocky spots.

Fish Species Commonly Seen at Phi Phi Leh

• Parrotfish – brightly colored, slow-moving, easy to photograph

• Butterflyfish – often found near coral ridges

• Sergeant Major Fish – swim in large schools near the surface

• Clownfish – hiding among sea anemones

• Fusilier Fish – large shimmering schools during sunny hours

The calmer the sea, the more marine life you’ll encounter.

Tips for Great Snorkeling & Clear Underwater Photos

• Use a full-face snorkeling mask

Provides wide visibility and easier breathing — perfect for beginners.

• Wear a fitted life jacket

Helps you float comfortably without touching coral.

• Choose reef-safe sunscreen

Prevents coral bleaching and protects marine life.

• Move slowly

Fish stay calm and may come closer, giving you better views and better photos.

• Never touch or step on coral

To protect both the ecosystem and yourself (coral cuts can be painful).

Why Snorkeling at Phi Phi Leh is So Special

• Crystal-clear water especially during high season

• Coral reefs still healthy in many areas

• Easy sightings of clownfish, parrotfish, and large fish schools

• Multiple snorkeling spots suitable for beginners

• Stunning seascapes that make Phi Phi Leh one of Thailand’s best snorkeling destinations

Visiting during the clearest water period gives you the best chance to experience the vibrant underwater world in its full beauty — a perfect blend of nature, calm sea, and colorful marine life.