similan islands

Similan Islands – A comprehensive guide

In the middle of the Andaman Sea lie the picturesque Similan Islands, a group of eleven islands that embody the true essence of natural beauty and vibrant marine life. These islands are an unspoiled paradise where time seems to have stopped, allowing visitors to fully enjoy the tranquility and stunning topographical highlights.

Each island in the archipelago is unique, offering a mix of natural beauty and rich biodiversity. From Ko Hu Yong, known for its long white beach, to Ko Similan, the largest island that offers an abundance of activities, visitors get their money’s worth. The islands are numbered from 1 to 11, each with its own name and characteristics.

Discovering the Similan Islands

Geography and overview

The Similan Islands are located 70 kilometers off the coast of Phang Nga Province. These islands are known for their pristine waters, pristine white sand and dense tropical forests. Although the term “Similan” is derived from the Yawi word for nine, two additional islands were added to the national park in 1998.

Impact of tourism and conservation efforts

Despite their beauty, the islands are heavily impacted by tourism, with overcrowding being a major problem. To mitigate this, park authorities have limited the daily number of visitors to 3,325. Ko Tachai in particular has been closed since 2016 to protect its fragile ecosystem.

Wildlife: a dive into the underwater wonderland

The Similan Islands are home to a variety of marine life, including manta rays, whale sharks and several species of sea turtles. The islands are also home to a vibrant bird population, with over 120 species reported, including some rare birds found only in this region. Unfortunately, the islands were hit by massive coral bleaching in 1998 and 2010, but the corals are on the mend and promise a rich underwater experience for visitors.

Planning your visit: important information

Best time to visit

The ideal time to explore the Similan Islands is from December to April, when the water is clear and offers excellent conditions for diving and snorkeling. The park is open from October 15 to May 15, with daily opening hours from 8am to 4pm.

Entrance fees and regulations

As of June 2022, entrance fees are 500 baht for adults and 250 baht for children ages 3-14, with different rates for Thai citizens. Please note that the park may close earlier than scheduled in case of inclement weather.

How to visit the Similan Islands: day trips, overnight trips and multi-day experiences

There are several options for exploring the Similan Islands, tailored to the different desires and adventures of each visitor. Whether you want to soak up the sun for a day or immerse yourself in island life for several days, the options are many and promise an experience filled with enchanting views and heartwarming encounters with nature.

Day trip

A day trip is a quick yet fulfilling way to experience the charm of the Similan Islands. These excursions are ideal for those who want to see the beauty of the islands in a limited time frame. You can snorkel, sunbathe or just relax by the crystal clear waters and enjoy the lively atmosphere around you.

Overnight stay

For those who want to explore the island’s charms more deeply, an overnight stay provides the perfect retreat. This will give you time to explore the islands at your leisure, enjoying the breathtaking sunsets and the quiet mornings when the sounds of nature will put you in a peaceful state.


For true adventurers, multi-day diving excursions on a liveaboard boat offer an unparalleled experience. These trips allow you to explore the underwater wonders of the Similan Islands extensively, diving at various sites to observe the vibrant marine life and magnificent coral formations that thrive beneath the waves. It’s a fascinating journey that connects you to the heart of the islands and lets you experience the beauty above and below the sea.

It’s worth noting that most organized tours offer the convenience of a return transfer from popular places like Phuket or Khao Lak, making the trip to the islands smooth and stress-free. However, keep in mind that the park is closed to visitors during the monsoon season to protect the fragile ecosystem and ensure visitor safety.

Plan your visit wisely to experience all the wonders and attractions that the Similan Islands have to offer and create memories that will resonate in the soul and stay in the heart for a long time to come.

Top activities on the Similan Islands

When you plan your trip to the Similan Islands, a world of magic and adventure awaits you. Let’s guide you through the best activities that promise an unforgettable stay in this pristine paradise. Dive into the crystal clear waters, relax on the sun-drenched beaches or hike to one of the most beautiful viewpoints – here you’ll find an overview of the best activities you can do in the Similan Islands.

Snorkeling: Discover and protect the underwater treasures of the Similan Islands

The Similan Islands are known for their stunning snorkeling sites that open the gateway to an enchanting and delicate underwater world. As you prepare to dive into this marine paradise, adhering to eco-friendly snorkeling guidelines is of utmost importance.

Touching coral in a seemingly harmless way can cause significant damage to the delicate marine ecosystem, even causing allergic reactions and skin rashes in some. To have a fulfilling and responsible adventure, it’s important to avoid direct contact with the corals and beware of possible allergic reactions.

Following these guidelines not only protects the living underwater world, but also enriches your snorkeling experience and promotes the protection and respect for the magnificent ecosystem of the Similan Islands.

Diving: Diving deeper into the aquatic wonderland of the Similan Islands

In the heart of the Similan Islands lies an underwater sanctuary that offers unparalleled diving experiences that attract enthusiasts from around the world. Imagine diving into warm, crystal clear waters where moderate currents take you through a world of vibrant marine life and visibility reaches an amazing 30 meters to experience the beauty of nature in its purest form.

During your diving expedition, you’ll have the opportunity to encounter the gentle giants of the sea – the magnificent whale sharks that gracefully glide through the waves. They’re joined by the majestic manta rays and the agile blacktip reef sharks, which perform a dance of suppleness and elegance in their natural habitat. The presence of friendly turtles and various species of rays adds a touch of magic to this underwater escapade, promising encounters that are nothing short of awe-inspiring.

Be enchanted by the magic that lies beneath the waves of the Similan Islands and the harmonious symphony of life that thrives in this aquatic paradise.

Relax on the beach: enjoy the breathtaking beauty of the Similan Islands

On the shores of the Similan Islands, you’ll find a number of beaches that stand out for their breathtaking beauty and tranquility. These paradisiacal spots, with their golden sands and azure waters, invite visitors into a realm of relaxation and tranquility that is second to none.

In this dreamlike setting, lounging on the soft sand and soaking up the vibrant surroundings becomes not only a leisure activity, but a heartfelt desire of visitors. Here, every moment becomes a beautiful memory as you surrender to the soothing embrace of the pristine beaches of the Similan Islands.

Hike to Sail Rock Viewpoint in Donald Duck Bay: The iconic adventure of the Similan Islands

Begin a rewarding hike to the famous Sail Rock Viewpoint in Donald Duck Bay, a popular Similan Islands landmark. This short but breathtaking hike offers a rare glimpse of the islands’ stunning beauty and a panoramic view that will leave visitors in awe.

However, it’s important to note that adverse weather conditions can sometimes hinder access to this popular site. To ensure the safety of visitors and preserve the natural splendor of the area, access is closed.

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Accommodation and food

Camping is no longer possible due to the high number of visitors, but there are numerous resorts in the nearby town of Khao Lak. On the islands, there is a single restaurant in Ko Miang that is open daily from 8am to 2pm and provides a place to eat during your adventures.

Preparing for Your Similan Adventure

The Similan Islands, with its breathtaking beauty and rich biodiversity, promise an unforgettable experience. Whether you are a nature lover or an adventurer, this guide should help you plan an unforgettable trip to this Thai paradise.