Which islands in Thailand have not yet been overrun by tourists?

Far from the hustle and bustle of the tourist masses, Thailand’s islands are where nature reigns and traditional island life is still very much alive. Here you will find deserted beaches, lush jungles and an authentic atmosphere that invites relaxation and adventure. Each island offers a unique experience, perfect for travelers looking for peace and pure beauty.
'Unseen' Thailand: Koh Phayam (video)

Mainstream Thailand, everyone has already been there. Koh Phangan, Samui, Phuket and so on. What used to be special, has now left its mark on everyone. But there are still places that are still undiscovered. The island of Koh Phayam is a living example of this. Come along and imagine yourself at this exclusive holiday destination in the Andaman Sea.
Bounty Island Koh Phayam

One of Thailand's last bounty islands is tucked away in the Andaman Sea off Thailand's west coast. The island is only 10 by 5 kilometers in size and you can relax a lot.
Buffalo Bay a hidden harbor in the Andaman Sea

Buffalo Bay is a pristine beach on Koh Phayam in Ranong province. It's hidden gem in the south. It's like going back to Thailand in the 70's.
Koh Phayam, the last untouched pearl in the Andaman Sea? (video)

According to some, Koh Phayam in the Andaman Sea is the last untouched island in Thailand, not yet fallen prey to mass tourism.