Around 84 km northwest of Phuket, Similan Islands is one of the best-known island groups in the Andaman Sea Ecological Zone, part of Phang Nga province, beautiful southern Thailand. In 1982, Similan was recognized as a national park. Its name is derived from Malay, including nine small islands starting from North to South: Koh Ba Ngu, Koh Similan, Koh Payu, Koh Hok, Koh Ha, Koh Miang, Koh Payan, Koh Payong, and Koh Huyong.

At first glance, these islands look like the huge boulders that litter the western and southern shores on several of the islands, stand out with the white coral-sand beaches, splendidly picturesque and often deserted. Similan Islands has an indescribable beauty because the marine ecosystem is rich, flora and fauna under the sea are diverse. All islands are surrounded by dense tropical forests with white sandy beaches, so Similan retains its original wild charm.

Annual, the Similan Islands are open to visitors for about six months, from November 1 of the previous year to May 15 of the following year to preserve national heritage. Similan is sunny all year round, and the temperature is as high as in summer. The coldest days are not less than 25 degrees Celsius. That's why during the opening time you can come at any time. However, according to experience and research, the best ideal time to travel here is from late February to mid-March. At that time, Similan has little rain, the weather is not too hot, so it is very convenient for the recreational activities of tourists.

Best time to visit: October to May
Activities: Snorkelling, deep-sea diving, trekking, rowing

Located in the northeast of Malaysia, about ten nautical miles from the mainland and less than 70 kilometers from the Thai border, Perhentian is a familiar name for the people of the Malaysian kingdom, dubbed the best paradise island. Perhentian Island is a group of small islands in the state of Terengganu consisting of two main islands, Perhentian Besar and Perhentian Kecil, surrounded by coral reefs with many beautiful beaches. It is one of the attractive tourist destinations with many interesting landscapes and activities.

White sandy beaches with clear water and flanked by rolling jungle-covered hills make the views from the beach spectacular. Coral Bay is on a small island, the only beach where you can fully watch the brilliant sunset. On the west side of Besar, which has the best and cleanest beaches. There are several trails that you can take around Kecil island full view of the Lighthouse Tower. With luck, you might be able to spot some of the islands' wildlife, including harmless monitor lizards and monkeys, not to mention nesting turtles at certain times of the year. Arguably the Perhentians' best sights of all are underwater, where you're likely to see reef sharks and sea turtles amongst the corals and tropical fish.

Best time to visit: March to October

Activities: Swimming, scuba diving, trekking, volunteer at Turtle Conversation

Pom Pom Island is a small coral reef island in the Celebes Sea, approximately 30 kilometers northeast of Semporna town, Sabah, East Malaysia.

The island has a white sand coral beach, one of the most popular dive destinations in the Semporna district. This exquisite island is a tiny, peaceful land fragment with no population and only a few resorts.
The region is part of the coral triangle has 500-plus coral species, also is an important nesting and feeding site for green and hawksbill turtles.

The reef is on the edge of the continental shelf, depending on the tide, the current at these locations can be strong, offering excellent drift dives. Pom Pom has two dive resorts, Pom Pom Resort and Celebes Beach Resort, and a marine conservation project Tropical Research and Conservation Centre (TRACC). The island is a macro divers' paradise with many small creatures located in the shallows in front of the resorts. The two resorts provide a variety of PADI courses, dives & accommodation for recreational scuba divers.

Best time to visit: May to August

Activities: Scuba diving, kayaking, watching the giant green and hawksbill turtles

Approximately 75 km from Kawthaung, Macleod Island is in the Mergui Archipelago has more than 800 pristine islands scattered in the Adman Sea. The island has three soft white-sand beaches surrounded by tropical wilderness, sparkles of blue water, and white sand beach, soft white sand between toes is a wonderful feeling.

At the Adman resort, guests have chances to communicate with native tribes and enjoy tropical mangrove forests and wildlife. Some outdoor activities and amenities are bar, diving, snorkeling, short trekking, kayaking, bay swimming, etc. It is also the very first Asian private cruise resort destination. Diving into the azure water, exploring underwater life in coral reefs, and going kayaking to offshore caves, all these activities are must-experience here. Snorkeling in the clear water is also great because of the abundance of marine life underwater.

Macleod Island is a perfect holiday destination for people looking for peace and nature lovers.

Best time to visit: October to January

Activities: Swimming and diving

Located in the Gulf of Thailand and about 25 km from the coast of Sihanoukville, Koh Rong island in Cambodia is still often called by the most favorable name, "island paradise". Koh Rong is the second largest island in Cambodia with an area of more than 78 square kilometers, 43 kilometers of coastline, and more than 23 beautiful beaches. It is famous for the pristine beauty of fine white sand, clear, warm seawater, and a pleasant tropical climate. Koh Rong is a name that is both familiar and famous when it comes to Cambodia's tourism.

Koh Rong is home to many unique marine species definitely cannot miss diving to see the ocean with glasses and snorkel or scuba diving. Alternatively, try trekking to two other beaches located on the other side of the island, Lazy Beach and Sunset Beach to admire the beautiful sunset. In general, Koh Rong is a suitable place for couples to relax, find a quiet atmosphere after the chaos of life.

Best time to visit: May to early October

Activities: Camping on the beach, boat trips, walking by the beach at night to experience bioluminescent plankton

Cat Ba island district is an archipelago with 367 large and small islands. Cat Ba is the name of the main island about 100km² wide, 30 nautical miles from Hai Phong port, located in the south of Ha Long Bay, creating an archipelago of islands and caves that captivates visitors. Coming Cat Ba, visitors will enjoy the fresh air and immerse themselves in the beautiful nature.

Cat Ba Island is the 3rd biosphere reserve in Vietnam, recognized by UNESCO as a world biosphere reserve. Cat Ba Biosphere Reserve is an area full of tropical rainforests, mangroves, coral reefs, seaweed mats, and especially cave systems. Cat Ba also has a Cai Beo site belonging to Ha Long culture people who lived 6475-4200 years ago.

The garden's terrain is diverse, mainly limestone mountains with many interesting caves and interspersed with white and smooth sand beaches, where tourists swim. The climate on Cat Ba island is very cool and fresh, suitable for rest, travel, and relaxation.

Best time to visit: February to April

Activities: Rock climbing, trekking, ferry rides, visit the national park, visit Monkey Island, visit the local market that is famous for seafood

Palawan is the largest island of Palawan province in the Luzon region and the fifth-largest island of the Philippine island nation. Located in the southwest of the Philippines, separating the East Sea from the Sulu Sea. Called an island, Palawan is 450km long and wide with airports: El Nido Airport, Puerto Princesa, Cesar Rodriguez Lim, Taytay and Francisco Reyes, Busuanga. Attractions include Northern Palawan (Bacuit Islands, San Vicente, El Nido, and Taytay), Southern Palawan (Tabon Caveschevron, Brooke's Point).

The northern part is characterized by tropical waters with white sands, and a variety of plant and animal species here. The most famous place of the North is the two islands of El Nido and Taytay, characterized by limestone cliffs and diverse species of tropical fish and coral, underwater sea turtles.

For Filipinos, El Nido is undoubtedly the most impressive island. Located on the northern tip of Palawan, it is a collection of stunning atolls and bays hidden among white sandstone cliffs emerging from the emerald sea. In addition, Palawan also has Puerto Princesa, the longest underground river in Asia and the second-longest in the world with a length of more than 8km. UNESCO calls it one of the best unique places in the world.

Best time to visit: November to April

Activities: Wreck diving, hiking, visiting the waterfall

Cebu Island is not only the second island city of the Philippines but also known as the "queen of the South", is the most ideal and wonderful tourist destination in the Philippines.

Cebu Island has a wonderful climate and weather, suitable for traveling all year round. However, the most appropriate and wonderful time to travel to Cebu Island, Philippines smoothly and happily in the summer, around May to July. Here, you can visit Oslob Town, an invaluable destination. The same attraction is due to swimming with whale sharks, a service that developed not too long ago but has made Oslob quickly a great tourist destination in the Philippines. And besides whale sharks, when coming to Oslob, visitors can also immerse themselves in the beautiful beaches of Sumilon island or admire the beauty of Tumalog waterfall. You can go scuba diving, watch schools of fish swimming, colorful coral reefs right at your feet or enjoy delicious seafood parties.

Best time to visit: November to April

Activities: Fishing, trailing, trekking

Dubbed the "island of peace" or the island of love, Jeju Island captivates tourists with its calm, unspoiled beauty but no less charm. It has beautiful and poetic natural scenery with many tourist attractions that you cannot miss. Come here once you will have to admire the miracle of creation! Jeju Island - the ideal Korean tourist destination, enjoy the feeling of the blue sea, beautiful beaches, be close to nature and enjoy famous dishes here is always a great experience and meaning for each visitor.

Jeju is the largest island in Korea, with a length of 41km and a width of 73km. As the place with the best climate in Korea, the weather is mild and cool all year round. At the hottest time of the year, the temperature is only 33 degrees Celsius. The landscape here makes not only locals but also international tourists couldn't help but swoon. Beautiful nature with majestic waterfalls, long white beaches, clear blue sea, and many beautiful attractions. The best time to visit Jeju Island is from April to June, this time both the weather and nature are the most brilliant and fresh.

Best time to visit: July to September

Activities: Great place for swimmers, visit the folk village

With a splendid natural landscape still unspoiled, the Raja Ampat archipelago (Indonesia) in the Coral Triangle area is considered the place with surreal natural images in Asia. Raja Ampat also means "four kings" located near the coast of New Guinea to the northwest. Now, this archipelago is a national park of Indonesia. There are about 1,500 islands with many mountains, the largest of which are the islands of Waigeo, Batanta, Salawati, and Misool. And of these, less than 40 islands are inhabited and imprinted with tourists. The small islands with verdant vegetation and underwater are sea creatures, and colorful coral reefs have created a wonderful natural scene for Raja Ampat.

Nature in Raja Ampat was well preserved, so it is still wild and quiet and fresh. Therefore, although the islands are located quite far from the mainland, the number of world tourists looking to the "paradise on earth" Raja Ampat is sharply increasing every year. For scuba divers, Raja Ampat is considered a must-visit place in life because 70% of the world's coral reefs are concentrated here. Visitors can also easily admire whales, dolphins, sea turtles, and many kinds of fish with impressive shapes and colors. Natural picture in Raja Ampat is also dotted with images of blue lagoons, mangroves, and primeval forests.

Best time to visit: October to April

Activities: Snorkeling, diving, visit biodiversity resort, must-visit Pasir Timbul Beach