Koh Rayang Nai  is a small island situated alongside its "twin," Koh Rayang Nok, within the Rang Archipelago of Trat Province. Positioned closest to the shoreline of Koh Mak, it often appears as a satellite island protecting the waters of Ao Kao. The distinct difference between Koh Rayang Nai and Koh Rayang Nok is the former's "raw" and even more peaceful nature. Since there are no overnight accommodations or large structures on this island, it has become a dream destination for those seeking absolute quiet and an escape from the hustle and bustle of mainstream tourism. Upon arrival, you will find a charming small beach; while the sand may not be as powdery white as Koh Rayang Nok in certain spots, the clarity of the water and the artistic arrangement of various rock formations around the shore create a uniquely beautiful natural landscape.

The heart of visiting Koh Rayang Nai lies in kayaking. Due to the very short distance from Koh Mak (specifically from the Ao Kao beach area), most tourists prefer to rent a kayak and paddle across to experience the atmosphere themselves. Paddling through turquoise waters while watching the lush green island approach is an exhilarating and enjoyable experience. Once on the island, you can explore its entire perimeter in a short time. Most of the area is covered by dense, healthy forest, with coastal plants and large trees providing cool shade. It is an ideal spot for sitting back to enjoy the vast ocean view or having a simple picnic on the beach accompanied by the sounds of birds and rhythmic waves.

In terms of snorkeling, Koh Rayang Nai holds its own charm. While the coral reefs may not be as extensive as those at Koh Rayang Nok, the areas around the rocks and beneath the clear surface serve as habitats for numerous small fish and various tiny marine creatures. Donning a mask to explore the shoreline is a delightful way to spend the afternoon. Furthermore, for photographers, Koh Rayang Nai offers a magnificent vantage point looking back toward Koh Mak, especially when the sunlight hits the water, creating stunning reflections. The silence of the island allows for more quality time with oneself—whether for meditation on the beach, sketching, or simply taking a nap under the trees without the intrusion of boat engines or large crowds.

Visiting Koh Rayang Nai is truly like returning to the basics of nature. There are no luxury facilities, shops, or restaurants here; instead, what you gain is a sense of fulfillment from the fresh air and clean vistas. This island also functions as an important coastal ecological learning site, helping us understand the connection between main islands and their satellites. If you have the opportunity to vacation on Koh Mak, dedicating an hour or two to kayak to Koh Rayang Nai will make your trip to the Trat sea even more meaningful and memorable. It opens up a new perspective on travel that focuses on simplicity yet remains incredibly powerful in terms of feeling and connection to the environment.

• By Kayak: The most popular method. Rent a kayak from resorts at Ao Kao on Koh Mak; paddling across takes only 10-15 minutes.

• By Long-tail Boat: You can charter a boat from the pier on Koh Mak for a drop-off and pick-up (often included in tour packages that visit Koh Rayang Nok).

• Recommended Timing: Best to visit between November and April when the sea is calm, making kayaking safe and easy.

• Preparation: Since there are no shops or facilities on the island, please bring your own drinking water, snacks, and a trash bag to take your litter back to the main island.

• Safety: If kayaking yourself, check the current conditions and always wear a life jacket, even for this short distance.

Admission Fee:

• Generally free of charge 

Opening Hours:

• Recommended visiting hours are during daylight: 08:00 – 17:00

• Kayaking back after dark is not recommended for safety reasons.