Stop everything and explore the Similan Islands? Here are top 8 reasons!

The Similan Islands, situated in the Andaman Sea of Thailand, comprise 11 islands in one archipelago. Renowned as one of the most famous dive spots in the world, the Similan Islands are a place you definitely have to tick off your bucket list as you’ll get an experience like no other. But the magic of the Similans isn't confined to the depths. Above water, pristine white-sand beaches fringed by lush jungle beckon explorers and sun-seekers alike. So, let us take you on a journey to the Similan Islands through this guide.

Written by Preetika Narula (Local Expert)Updated on 05-11-2024

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1. Location & Why you should visit Similan Islands

The Similan Islands are a group of 11 islands in the Andaman Sea, about 84 kilometers northwest of Phuket and 70 kilometers off Phang Nga Province's coast. Each island boasts lush jungles and diverse flora and fauna.

Interestingly, "Similan" is Malay for "nine," reflecting the original count of islands. As the area gained popularity, two more were added to the group.

Why visit the Similans if you're already enjoying a tropical getaway in Phuket or Koh Chang? Well, let's break it down for you:

1. World-Class Diving: The Similan Islands are a top destination for divers globally. Divers of all skill levels can explore vast coral gardens and impressive underwater rock formations.

2. Rich Marine Biodiversity: The islands offer a unique opportunity to witness diverse marine life up close. Visitors can observe manta rays, whale sharks, barracudas, and other sea creatures in their natural habitat. This experience highlights the importance of coral reef conservation for both marine ecosystems and human well-being.

3. Secluded Beaches: Unlike busier Thai islands, the Similans offer peaceful, less crowded beaches. Travel writers frequently praise these shores as some of Thailand's finest. Visitors can enjoy soft white sand and dense foliage, accompanied by the gentle sound of waves – a stark contrast to more popular island destinations.

2. Best Time to Visit

As with other tropical destinations in southern Thailand, the best time to visit is during the dry season from November to April. 

December and January mark the peak season, bringing more visitors but also a lively atmosphere. If you're visiting the Similan Islands, this is an ideal time, as the national park is closed from May to October due to the heavy monsoon season and to prevent environmental degradation.

3. How to Get to the Similan Islands

From Bangkok

To reach the Similan Islands from Bangkok, several travel options are available. The islands are approximately 800 kilometers away, with Khao Lak being the nearest point.

• Air: Fly directly to Phuket, with flights taking around 2 hours and costing around 3,500 baht. Prices may increase during peak seasons or with last-minute bookings.
• Bus: For a budget option, take a bus directly to Khao Lak, which takes around 12 hours and costs about 1,200 baht.
• Car: Driving to Phuket or Khao Lak takes about 10 hours. Prices vary by rental or charter service.

>>> Read more: 12 Unique Things to Do in Bangkok!

From Phuket

Phuket is about 70 kilometers from the Similan Islands. Only aquatic transport is available:

• Speedboat: The most common option, taking around 2 hours and costing between 3,500 to 6,000 baht depending on the season. This includes park fees, equipment rental, and meals.

• Charter Boat: Ideal for groups, offering more privacy and flexibility but can cost up to 35,000 baht.

>>> For more information, please read: Best Time to Visit Phuket?

From Khao Lak

Khao Lak is the closest point to the Similan Islands, just 50 kilometers by sea.

• Speedboat: The primary mode of transport, taking about an hour and costing between 2,500 to 5,000 baht depending on add-ons like meals and guided tours. Khao Lak also offers luxurious accommodations, making it a convenient and appealing base for your trip.

From Krabi

Krabi is 125 kilometers from the Similan Islands, but you’ll need to pass through Phuket or Khao Lak as there are no direct routes.

• Drive or Bus: Travel to Khao Lak (about 2 hours from Krabi) by private car or bus. From there, take a speedboat to the islands.

>>> For more information, please read: 5 Things You Must Know About Krabi

4. What to do in Similan Islands?

There's so much to see and do in and around the Similan Islands, but given time constraints you might only get to visit the 9 core islands located in this archipelago of islands. That doesn't mean you won't have any activities to choose from. Here are some top activities you can engage in: 

1. Diving:

It is recognized to be one of the best diving locations in the world due to the diverse range of marine life here and the beautiful coral reefs. The main archipelago consists of 9 key islands with a famous dive spot located near Koh Similan (Island 9) called Elephant Head Rock. To explore the region further, some dive itineraries will include Koh Bon and Koh Tachai, located to the north of the archipelago and are amazing areas to catch manta rays.

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2. Snorkeling:

If diving isn't your thing and you still want to see some of the marine life found in the waters around the Similan Islands, you can always opt for snorkeling. Some popular spots include Koh Bangu (Island 9) and Koh Payu (Island 7) where here, the waters are fairly calm and you'll get the opportunity to see sea turtles, sometimes reef sharks and of course a wide variety of colorful fish.

3. Hiking:

Each island offers its own unique trails, with Island 8 being particularly popular due to its renowned trail leading to the Sail Rock viewpoint. This spot provides a breathtaking panoramic view of the Andaman Sea, an experience that's truly unforgettable, especially during the pleasant weather of peak season.

4. Island Hopping:

You can explore the beauty of the entire archipelago without getting in the water. Boat charters offer a convenient way to visit multiple islands, with Koh Miang (Island 4) and Koh Similan (Island 8) often being the highlights due to their stunning landscapes.

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5. Wildlife Encounters in the Similan Islands.

• Marine Life:

The Similan Islands are a haven for marine life enthusiasts. While diving or snorkeling, you’ll encounter fascinating sea creatures like moray eels, reef sharks, lionfish, and octopuses. On a night dive, you might even witness the magical glow of bioluminescent plankton.

• Turtles:

Koh Miang and Koh Similan feature turtle sanctuaries where sea turtles come to nest. These beaches have designated areas to protect these magnificent creatures. Visiting from October to April offers the best chance to see sea turtles in their natural habitat, and you might even catch them laying eggs.

• Bird Watching:

The skies above the Similan Islands are a delight for bird watchers. You may spot various birds, including the striking white-bellied sea eagles and nicobar pigeons, adding to the natural beauty of your visit.

• Terrestrial Wildlife:

The lush greenery on the islands is home to a wide range of terrestrial wildlife. Expect to encounter monitor lizards, flying foxes, and small reptiles like geckos and skinks, along with unique insects. 

6. Similan islands' accommodation

6.1 Northern Similan:

The Northern Similan Islands offer a tranquil escape, often overlooked by the more popular spots. This area is ideal for those seeking a quieter atmosphere. 

On Koh Ba-Ngu (Island 9), you’ll find basic camping facilities, but no other accommodations. If you plan to stay longer, consider a liveaboard boat, which not only offers relaxation but also opportunities for adventurous diving.

6.2 Central Similan:

The Central Similan Islands are a popular choice among tourists, known for rich marine life and easy access. Koh Miang (Island 4) is the main island in this area, offering more accommodation options than the Northern Similan Islands. 

You can choose from basic bungalows with essential amenities, camping facilities with tents and sleeping bags, or liveaboard boats anchored near the main beaches.

6.3 Southern Similan:

The Southern Similan Islands are largely untouched and off-limits to tourists to protect the environment. Islands 1 and 2 are located here, but there are no accommodations except for liveaboard boats docked offshore.

So where should I stay? For most visitors, staying on the mainland in Khao Lak or Phuket and taking day trips to the Similan Islands is the best option. However, if you're feeling adventurous, explore liveaboard options that fit your budget or consider staying in the Central Similan Islands in a bungalow or a campsite.

7. Practical Tips for Visiting the Similan Islands

• Transportation:

While we’ve covered the basic ways to reach the Similan Islands, it’s crucial to plan your transportation well in advance. This helps you account for any potential delays and secures your bookings, especially during peak season when prices can rise due to high demand.

• Fees:

You’ll be pleased to know that fees for national parks and permits are usually included in your selected tour package, whether it’s a boat tour or a diving excursion. However, it’s always wise to confirm this with the tour company or liveaboard operator before finalizing your booking.

• Motion Sickness Pills:

If you're about to go on a speedboat, buy motion sickness pills before your trip. Some companies provide them, but it's better to be prepared. Once you start feeling sick, it’s hard to stop. Avoid sitting at the front; it’s fun at first but can get rough. If you love great scenery but are worried about seasickness, consider a cruise to Phang Nga Bay instead.

8. FAQs about the Similan Islands 

• Are the Similan Islands worth visiting? 

Absolutely! They're a must-see in Thailand, offering a magical marine experience. Google searches and traveler reviews consistently praise these islands.

• Why are Similan Islands closed during off-season? 

The Similan Islands are closed from May to October due to the monsoon season, which brings rough seas and dangerous conditions. This closure also allows the islands to recuperate and rejuvenate, preserving their natural beauty for future visitors.

• How Long Is the Boat Ride from Phuket to the Similan Islands?

The boat ride from Phuket to the Similan Islands typically takes 1.5 to 2 hours by speedboat. If you prefer a more leisurely trip, larger tour boats take slightly longer, around 2+ hours.

• Can You Do a Day Trip to the Similan Islands from Phuket?

Yes, day trips to the Similan Islands from Phuket are quite popular due to the islands' close proximity. Numerous tours offer round-trip options, with some even providing overnight stays depending on your schedule and budget.

• Is diving worth it in the Similan Islands? 

Without a doubt. It's renowned as one of the world's best dive spots, suitable for all skill levels.

• Which Is Better, the Surin Islands or the Similan Islands?

Both offer unique experiences. Similan is more popular, while Surin is less crowded. Consider visiting both if time allows.

• When Can You See Whale Sharks in the Similan Islands?

The best time to see whale sharks on Similan Islands is between February and April. While sightings aren’t guaranteed, this period offers the highest chance of encountering these magnificent creatures.

• Are the Similan Islands Busy?

Yes, the Similan Islands can be quite busy during the high season, especially from December to March. To avoid crowds, consider visiting in November or April, but try to avoid the Songkran holidays in April, when the islands and surrounding areas can get particularly crowded.

Conclusion

The Similan Islands offer a holiday destination that promises unforgettable memories. Renowned as a world-class diving site, this part of Thailand is perfect for creating stories you'll cherish, set against the enduring beauty of Thailand’s beaches. By following the tips and suggestions provided in this article, planning carefully, and respecting the environment, you're sure to have an enjoyable and truly memorable experience on the Similan Islands. So, are you ready to explore the Similan Islands?

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