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National Park · Phang Nga Province, Thailand

Similan Islands National Park

Similan Islands National Park is a marine and island park in the Andaman Sea, renowned for crystal-clear waters, vibrant coral reefs, and exceptional scuba diving and snorkeling opportunities.

National Park141,875 acres (57,400 hectares)4+ Trails

Designation

National Park

Total Wilderness Area

141,875 acres (57,400 hectares)

Elevation / Terrain

Diverse Wilderness

Field Editorial Guide

About Similan Islands National Park

Similan Islands National Park is a marine and island park in the Andaman Sea, renowned for crystal-clear waters, vibrant coral reefs, and exceptional scuba diving and snorkeling opportunities.

Wilderness Landscape & Natural Heritage

Similan Islands National Park is located in the Andaman Sea off the coast of Phang Nga Province in southern Thailand. Established in 1982, the park protects nine main islands and several smaller islets, covering both terrestrial and marine environments. The islands feature white sandy beaches, granite rock formations, and lush tropical forests. The underwater ecosystem is among the most diverse in the region, hosting vibrant coral reefs, sea fans, and an abundance of marine life such as manta rays, whale sharks, reef sharks, moray eels, and sea turtles. The area has become a world-renowned destination for scuba divers and snorkelers seeking clear water visibility and rich biodiversity. Visitors can also explore coastal trails, relax on pristine beaches, or enjoy boat tours around the islands. The park is managed with conservation as a priority, limiting visitor numbers during monsoon season to protect fragile coral systems. The islands hold cultural significance to local communities and are part of ongoing efforts to balance tourism with environmental preservation. The park’s most famous landmarks include Elephant Head Rock and the famous diving site at Koh Bon. Its appeal lies in the combination of spectacular marine adventures and breathtaking island scenery, making it a premier destination for outdoor enthusiasts and nature lovers.

Field Guide · National Park
Adventure Destinations

Notable Destinations Near Similan Islands National Park

Scenic viewpoints, outdoor landmarks, and notable points of interest within 30 miles.

Similan Islands - A Tropical Paradise★ 8.9⌖ 6 miScuba Diving
Similan Islands

Similan Islands - A Tropical Paradise

Experience the Similan Islands, an acclaimed diving and snorkeling destination in Thailand, known for its vibrant marine life and stunning landscapes. Ideal for adventure seekers, this location offers prime diving from November to April. Accessible by boat only.

Scuba DivingView Details→
Serenity by the Shore: Mai Khao Beach★ 8.5⌖ 54 miRelaxation
Mai Khao Beach

Serenity by the Shore: Mai Khao Beach

Explore Mai Khao Beach located in Sirinat National Park, Phuket. There are opportunities for sea turtle watching, hiking, and picnicking. Best visited between November and April, this serene beach offers wildlife sightings and peaceful relaxation.

RelaxationView Details→
Unwind in Trisara, Phuket's Paradise⌖ 57 miSnorkeling
Trisara

Unwind in Trisara, Phuket's Paradise

Trisara in Phuket offers luxury and tranquility with activities like snorkeling, diving, and jungle trekking. Best visited from November to April for calm seas. Expect low crowds year-round with stunning sunset views.

SnorkelingView Details→
Sunshine and Serenity at Laguna Beach★ 8.5⌖ 59 miSnorkeling
Laguna Beach

Sunshine and Serenity at Laguna Beach

Explore the serene Laguna Beach in Phuket's Thalang District. Known for snorkeling and kayaking, the clear waters and low crowds make it ideal for relaxation and adventure. Best visited from November to April, this destination is perfect for adventure seekers.

SnorkelingView Details→
Serene Shores of Bang Tao Beach★ 8.2⌖ 59 miSnorkeling
Bang Tao Beach

Serene Shores of Bang Tao Beach

Explore the serene shores of Bang Tao Beach in Phuket. With easy access and family-friendly activities like snorkeling and kayaking, this beach is perfect for a relaxed day. Best visited between November and February for optimal water clarity.

SnorkelingView Details→

Key Wilderness Highlights

✦ Elephant Head Rock – iconic granite formation rising from the sea✦ Diving at Koh Bon – known for manta ray sightings and abundant marine life✦ Clear water snorkeling around Koh Similan's coral gardens✦ Thap Lamu Bay viewpoints offering panoramic island views
Wilderness Recreation

Outdoor Adventures in Similan Islands National Park

Explore curated guides for top outdoor sports, trail networks, and wilderness activities.

Park Recreation

Hiking

Available in Similan Islands National Park
Park Recreation

Camping

Available in Similan Islands National Park
Park Recreation

Wildlife Viewing

Available in Similan Islands National Park
Park Recreation

Fishing

Available in Similan Islands National Park
Park Recreation

Paddle Sports

Available in Similan Islands National Park
Park Recreation

Scuba Diving

Available in Similan Islands National Park
Park Recreation

Snorkeling

Available in Similan Islands National Park
Park Recreation

Photography

Available in Similan Islands National Park
The Ranger Station

Visitor Logistics & Essential Planning

Everything you need to know about entrance passes, seasons, visitor centers, road transit, and wildlife safety in Similan Islands National Park.

Passes & Fees

Entrance Requirements & Interagency Passes

Park entrance fee required, payable at Mo Ko Similan Pier; additional fees for camping and diving apply.

Wilderness Checklist

Carry paper topographic map & compass in remote zones.
Store all food and scented items in approved bear canisters.
Check wildfire / smoke advisories before backcountry departure.
Pack out everything you pack in (Leave No Trace).
Wilderness Stays

Camping & Overnight Stays in Similan Islands National Park

Frontcountry developed campgrounds, backcountry wilderness permit guidelines, and starry-night camping advice.

Campground on Koh Miang (Island 4)

Basic tent camping facilities on one of the larger and forested islands, offering easy access to beaches and snorkeling sites.

Campground on Koh Similan (Island 8)

Campsites near the main beach area with ranger presence, popular for early morning snorkeling and diving excursions.

Adventure Basecamps

Gateway Towns Near Similan Islands National Park

Stay, dine, and gear up in these mountain towns and scenic basecamps surrounding the park.

Thai Muang
⌖ 43.61 miles
Gateway Basecamp

Thai Muang, Phang Nga Province

A coastal town offering tranquil beaches, lush forests, and opportunities for water and land-based outdoor activities in a less crowded setting.

November to AprilExplore Town
Ban Dan Kao
⌖ 48.52 miles
Gateway Basecamp

Ban Dan Kao, Thailand

A quiet coastal town offering a mix of jungle trekking, beach activities, and cultural exploration along the scenic Andaman Sea coast.

November to AprilExplore Town
Takua Pa
⌖ 51.58 miles
Gateway Basecamp

Takua Pa, Phang Nga

A peaceful coastal gateway blending rich history with access to jungle trails, limestone cliffs, and island paddling adventures.

November to AprilExplore Town
Takua Pa
⌖ 51.58 miles
Gateway Basecamp

Takua Pa, Phang Nga Province

A historic coastal town offering access to lush rainforests, limestone karst landscapes, and pristine waterways for diverse outdoor adventures.

November to April (dry season)Explore Town
Bang Bao
⌖ 52.97 miles
Gateway Basecamp

Bang Bao, Trat Province

A peaceful coastal fishing village offering relaxed island exploration, marine activities, and scenic seaside hikes.

November to AprilExplore Town
Mai Khao
⌖ 54.51 miles
Gateway Basecamp

Mai Khao, Phuket Province

A tranquil coastal area known for its long, quiet beaches and natural sea turtle conservation zones, offering relaxed outdoor adventures in a less crowded setting.

November to AprilExplore Town
Expert-Led Wilderness Expeditions

Guided Experiences in Similan Islands National Park

Explore scenic backcountry routes and epic wilderness adventures with certified local mountain guides, naturalists, and outfitters.

12 bookable experiences

Availability, pricing, meeting details, and fulfillment are provided by the applicable operator or booking partner.