10 Hidden Gem Islands in Asia for Your Bucket List

Asia is home to some of the world’s most breathtaking tropical islands, but many travelers flock to the same famous destinations, such as Bali, Phuket, or the Maldives. While these spots are undeniably beautiful, they can also be overcrowded, expensive, and overly commercialized. For those seeking pristine beaches, crystal-clear waters, and untouched landscapes away from the masses, Asia has countless hidden gems waiting to be explored.
Whether you’re looking for secluded white-sand beaches, world-class diving, or unique cultural experiences, these ten underrated islands should be on your travel bucket list.
1. Koh Rong, Cambodia

Koh Rong, located off the coast of Cambodia, is a stunning tropical paradise that has remained relatively untouched compared to nearby Thai islands. With powdery white beaches, clear turquoise waters, and lush jungle interiors, it’s an ideal getaway for travelers looking for tranquility and adventure.
Unlike the bustling resorts of Phuket or Koh Samui, Koh Rong offers a slower pace of life, with beachfront bungalows and eco-friendly guesthouses. Diving and snorkeling here are exceptional, with vibrant coral reefs and abundant marine life. For a truly magical experience, take a night swim to witness the island’s famous bioluminescent plankton lighting up the waters.
2. Con Dao Islands, Vietnam

The Con Dao Islands, an archipelago off Vietnam’s southern coast, remain one of the country’s best-kept secrets. Once a remote prison colony, Con Dao has transformed into a haven of unspoiled beaches, dense forests, and world-class diving spots.
The surrounding waters are part of a marine national park, protecting sea turtles, dolphins, and colorful coral reefs. Travelers can hike through jungle trails, visit historical sites from Vietnam’s colonial past, or simply relax on the island’s deserted beaches. With a limited number of boutique hotels and guesthouses, Con Dao offers an exclusive escape without the tourist crowds of places like Phu Quoc.
3. Kanawa Island, Indonesia

Kanawa Island, located near Komodo National Park in Indonesia, is a paradise for snorkelers and divers. With an easily accessible coral reef teeming with marine life just steps from the shore, this island is perfect for those looking to explore underwater beauty.
The island itself is tiny and remains relatively undeveloped, with only a few accommodations available. It’s an excellent spot for those seeking a digital detox, as there’s limited internet and electricity. Sunset views over the surrounding turquoise waters and Komodo’s rugged landscape make this one of Asia’s most underrated island getaways.
4. Cuyo Islands, Philippines

The Philippines is famous for its stunning islands, but the Cuyo Islands remain largely undiscovered. Located between Palawan and Panay, this remote archipelago boasts powdery beaches, crystal-clear waters, and an authentic local culture.
Cuyo is a paradise for kitesurfers, thanks to its consistent winds and shallow lagoons. The island’s laid-back vibe, traditional fishing villages, and affordable accommodations make it an excellent alternative to busier tourist spots like Boracay. If you’re looking for a truly off-the-beaten-path beach escape, Cuyo should be on your list.
5. Koh Yao Noi, Thailand

Just a short boat ride from Phuket, Koh Yao Noi is a peaceful retreat that feels worlds away from the bustling tourist hubs of southern Thailand. This island is known for its lush jungle, quiet beaches, and stunning views of Phang Nga Bay’s limestone cliffs.
Unlike nearby Phuket or Krabi, Koh Yao Noi has remained relatively undeveloped, with eco-resorts and traditional fishing villages dotting its coastline. Visitors can explore the island by bicycle, go kayaking through mangroves, or take a longtail boat to nearby hidden beaches. It’s the perfect alternative for those seeking Thai island beauty without the crowds.
6. Nusa Penida, Indonesia

Nusa Penida, just off the coast of Bali, offers a raw and rugged island experience that stands in stark contrast to its more developed neighbor. Known for its dramatic cliffs, untouched beaches, and vibrant marine life, this island has quickly gained popularity among adventurous travelers.
One of the highlights of Nusa Penida is Kelingking Beach, often referred to as the “T-Rex Bay” due to its distinctive cliff shape. Snorkeling with manta rays at Manta Point is another unforgettable experience. While tourism is growing here, it remains far less crowded than Bali, making it an excellent escape for those looking for natural beauty and adventure.
7. Koh Phayam, Thailand

Koh Phayam is Thailand’s answer to what Koh Samui was like 30 years ago—peaceful, undeveloped, and brimming with charm. Located near the Myanmar border, this small island has no cars, few tourists, and stunning beaches lined with rustic beach huts.
It’s a haven for nature lovers, with thick jungle, quiet coves, and an abundance of wildlife. The island is perfect for those seeking relaxation, yoga retreats, or surfing on empty waves. If you’re looking for a Thai island experience that feels authentic and untouched, Koh Phayam is an ideal choice.
8. Sumba, Indonesia

Sumba, an island east of Bali, is one of Indonesia’s most culturally rich and visually stunning destinations. Known for its rolling hills, traditional villages, and world-class surf spots, Sumba offers an experience unlike any other in Indonesia.
Visitors can explore ancient tribal traditions, visit stunning waterfalls, or relax on pristine beaches with barely another traveler in sight. Sumba is also home to the luxurious Nihiwatu Resort, consistently ranked as one of the world’s best hotels. Whether you’re seeking adventure, culture, or high-end relaxation, Sumba is a hidden treasure.
9. Koh Tonsay (Rabbit Island), Cambodia

Koh Tonsay, or Rabbit Island, is a small and undeveloped island off Cambodia’s southern coast. Unlike the party-heavy islands in Thailand or the Maldives’ ultra-luxury resorts, Koh Tonsay offers a simple and peaceful retreat with rustic bungalows, swaying palm trees, and warm, shallow waters.
Electricity is limited, internet is nearly nonexistent, and nightlife is almost unheard of, making it the perfect place for a digital detox. Visitors can enjoy fresh seafood caught daily by local fishermen while lounging on empty beaches. It’s an excellent alternative for travelers looking to experience Cambodia’s coastline without the crowds.
10. Togian Islands, Indonesia

Located in the remote waters of Sulawesi, the Togian Islands are a secluded paradise for those looking to get far off the beaten path. This archipelago is known for its crystal-clear waters, rich coral reefs, and unique sea gypsy villages that float above the ocean.
Getting here requires some effort, as there are no direct flights, and travel is mostly by boat. However, the reward is a true castaway experience, where you can dive with stingless jellyfish, snorkel untouched coral gardens, and stay in traditional wooden bungalows over the water. The Togian Islands remain one of Indonesia’s most undiscovered gems.