Koh Adang is the second-largest island in the Adang-Rawi archipelago within Tarutao National Marine Park. Geologically, the island is characterized by steep, rugged mountainous terrain covered almost entirely by dense, virgin tropical rainforest. Its highest peak reaches an elevation of 690 meters above sea level, acting as a vital watershed for several streams that cascade down into small waterfalls, such as the Pirate Waterfall. Local legends suggest this waterfall was once a primary freshwater source for pirates who patrolled these waters to intercept merchant ships. The island boasts high biodiversity, serving as a sanctuary for various bird species like hornbills and sea eagles, as well as rare reptiles and insects.

In terms of recreation and historical significance, the heart of Koh Adang lies at "Pha Chado." This viewpoint is divided into three distinct levels and was once a site of immense strategic importance. Due to its commanding view over the Andaman Sea and the narrow channel separating Koh Adang from Koh Lipe, pirates used these cliffs as a lookout point to scout and ambush passing vessels. Today, Pha Chado has been transformed into one of the most popular nature trekking trails in the region. The third level, in particular, reveals a spectacular panoramic view of the boomerang-shaped Koh Lipe island, surrounded by turquoise waters and the distinctive white sandbars of the archipelago.

Beyond its terrestrial treasures, Koh Adang’s coastal and marine ecosystems remain exceptionally pristine. The beach fronting the National Park ranger station features a sprawling shallow-water coral reef that runs parallel to the shore. These reefs are home to staghorn corals, massive corals, and various species of anemonefish. What sets Koh Adang apart is its profound tranquility, offering a stark contrast to the bustling development of nearby Koh Lipe. With no nightlife or commercial districts—only government-managed bungalows and campsites—the island remains a crucial site for marine research and a premier destination for travelers seeking to experience the "authentic wilderness" of the Satun seas.

• You can take a longtail boat from Koh Lipe (about 10–15 minutes). Alternatively, take a speedboat from Pak Bara Pier to Koh Lipe first, then transfer to a local boat to reach Koh Adang.

• Check the weather forecast, especially during the monsoon season (May–October).

• Book accommodation in advance through the Department of National Parks Wildlife and Plant Conservation.

• Be cautious during the rainy season as trails can be slippery and muddy.

• Bring sunscreen and a hat to protect yourself from strong sunlight.

Admission Fees:

• Thai nationals: Adults 40 / Children 20

• Foreign nationals: Adults 200 / Children 100

Opening Hours:

• Open 24 hours a day, every day (but it's advisable to check the weather during the monsoon season, May–October).