Located in the southern part of the country, Si Phan Don, also known as the 4000 Islands, is a slow pace place where time seems to have no meaning. During the flood season, this area is the widest part of the Mekong River; however, when the water is low during the dry season, the islets and sandbanks appear and the number of them makes up the 4000 islands.

The Three Main Islands

Out of the thousands of islets, only three can be accessed throughout the year, these are Don Khong, Don Khone and Don Det. These islands are not only beautiful but also historical and you can find traces of French colonial villas which give the place a royal feel. Each of the islands provides different experiences, from peaceful village life, and beautiful river views, to thrills such as kayaking and cycling.

What to do in the 4000 Islands?

What are some of the things you can do in the 4000 Islands? Well. The rare Irrawaddy dolphins near the Cambodian border are a must-see! These friendly and cute creatures are quite rare to see, and this is one of the few places in the world where you can see Irrawaddy dolphins with your own eyes.

But that’s not all 4000 Islands can offer you! If you are looking for a hassle-free experience, check out customizable Laos tours from Absolute Asia Tours. Our professional consultants will ensure everything in your 4000 Islands tour such as quality accommodations, friendly tour guides, fascinating sightseeing spots,… What are you waiting for? Let’s join us to uncover this off the beaten path spot. The secret gem will not disappoint you!

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Discover Si Phan Don – The 4000 Islands of Laos

Si Phan Don, or the 4000 Islands, is a peaceful destination in southern Laos. This unique area, with its breathtaking islands and sandbanks, is shaped by the seasons of the Mekong River. During the flood season, it becomes the widest part of the river, but in the dry season, hundreds of islands emerge, creating a serene and tranquil atmosphere.

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Place on the map

Laos ⟩ Si Phan Don (4000 Islands)

Laos ⟩ Pakbeng

Laos ⟩ Pha That Luang

Laos ⟩ Tham Jang

Laos ⟩ Tham Xang

Laos ⟩ Wat Sisaket

Laos ⟩ Hongsa

Laos ⟩ Xieng Khouang

Laos ⟩ Wat Phou

Laos ⟩ Vientiane

Laos ⟩ Vang Vieng

Laos ⟩ Phongsali

Photos of Si Phan Don (4000 Islands)

Suggestions for Discovering Si Phan Don:


Explore the charm of Si Phan Don, where time slows down amidst the tranquil islands of the Mekong. Visit the Three Main Islands—Don Khong, Don Det, and Don Phapheng—each offering its own laid-back experience. Enjoy boat trips, spot waterfalls, and soak in the peaceful atmosphere perfect for relaxation and nature lovers.

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