Ecotourism has recently seen an increase in popularity. In 2024, a global trend underscores the significance of nature, particularly given the potential for severe weather in the coming years. Not only will traveling to experience nature up close leave you feeling energized and happy, but it will also enhance your understanding and appreciation for the meaning of the natural world.

Rayong Province, about three hours from Bangkok, is blessed with natural beauty both on land and in water. Most travelers associate Rayong with gorgeous beaches and tropical islands such as Koh Samet and Koh Man. However, Rayong’s natural beauty extends beyond its beautiful coastline. The province also has the best-preserved wetland areas and ecologically diverse old-growth trees in Rayong Botanical Garden. Considered one of Thailand’s ecotourism attractions, it has drawn interest from nature lovers all around the world. This is the only remaining fertile Cajuput tree forest in the eastern region. It is home to a diverse range of rare and endangered plant species. Furthermore, those who appreciate nature can connect with the natural environment through a variety of intriguing and diverse activities.

Botanical Garden—a lush sanctuary in Eastern Thailand

Comprising an old-growth forest as well as an extensive marsh spanning more than 988 acres, the botanical garden gathers more than 400 types of native flora and rare species that are nearly extinct. It also plays a significant role in enhancing the surrounding natural ecology. It also works as a natural barrier, reducing coastal erosion and preventing excessive saltwater from entering the land. Because the ground is so fertile, the garden provides a habitat for a variety of animals and plants.

Discover Thailand’s last remaining old-growth Cajuput tree forest

One of the most exciting things to do upon arrival at Rayong Botanical Garden is to hop on a pontoon boat, go kayaking, or try out a SUP board in the Nong Chamrung area. This natural swamp is home to the eastern region’s last remaining old-growth Cajuput tree forest. It has earned the nickname the Thousand-Year-Old Cajuput Tree Forest. The Cajuput trees in this area grow in sandy soil, whereas the surrounding landscape consists of both land and a waterlogged swamp forest. The area is overflowing with a diverse assortment of species, from land and aquatic animals to birds and insects. This spot is perfect for strolling through the fascinating Cajuput tree forest.
As the boat glides through the beautiful Cajuput tree forest, you’ll have the chance to immerse yourself in the tranquil ambiance and feel the cool breeze that gently sweeps by. Photography enthusiasts have plenty of stunning photo spots to explore, particularly when the sunlight filters through the trees and dances upon the water’s surface. Spending time in nature is truly a rewarding experience.

Visit the grass rafts and observe waterfowl in the lotus pond

Adjacent to the Cajuput tree forest, the boat will take you to an intriguing grass raft constructed from layers of thick, overlapping grass patches. The grass rafts are resilient thanks to their deep-rooted structure, which extends one meter into the water. At the heart of the raft, you’ll discover nepenthes and cape periwinkle. Cape periwinkle is rather rare, as it typically grows on solid ground. In addition, this pond is home to some incredibly unique aquatic orchids that are rarely found elsewhere. The pond is the center of local economic crops, which have had deep roots in the lives and histories of native residents for over two centuries.
In nearby areas, you’ll also spot a delightful array of waterfowl, such as oriental darters, Asian openbills, and teals, gracefully perching on tree branches and gliding through the area. And if you venture a bit farther on the boat, you’ll come upon a sprawling pond adorned with vibrant lotus flowers. There’s another highlight in this area that you do not want to miss: the Rak Samet Bridge, which gracefully spans across the center of the pond. Feel free to dock your boat and head up to the bridge for some incredible photo opportunities.

For those who are unfamiliar with flora and flowers, there are expert local guides along the walk who will gladly explain and educate visitors.

Go for a bike ride or a stroll around the island

If you’re not a fan of water activities, there are plenty of ground activities for you to enjoy. Strolling through the botanical garden, you’ll discover five islands of varying sizes: Koh Taew Yai, Koh Taewlek, Koh Chamuang, Koh Kok, and Koh Narok. There is a wide range of local plant species that have a deep connection to community life, such as local vegetables, medicinal plants, salt licks, and wet grasslands.

Another attraction worth seeing is the scenic bicycle route. A 3.2-kilometer path through nature awaits you to discover every nook and cranny of the Botanical Garden. There is also a camping spot for people who prefer to spend the night immersed in nature.

Must-visit destinations for low-carbon travel

Rayong Botanical Garden is known for its environmentally friendly practices that reduce CO2 emissions, making it a popular destination for eco-conscious travelers. For example, most garden vehicles, such as kayaks and bicycles, run on renewable energy. Furthermore, the staff’s shirts are produced from recycled materials, and tourist route signs are made from tourism trash, all of which promote the long-term development of low-carbon tourism in the Rayong Botanical Garden.

Additionally, there are initiatives aimed at educating children, youth, and the public about environmental conservation and biodiversity, fostering a sense of responsibility toward preserving Thailand’s wetlands.

Travel Trips

Location: Klaeng Subdistrict, Rayong Province
Opening hours: Every day from 08.30 – 16.30 (to avoid the heat, visit between 08.30 – 10.00 and 15.00 – 16.30).
Best time to visit: Any time of year is suitable. It is recommended from October to November because it is the rainy season when you can row or take a boat to some spots more easily.

How to get there: The Botanical Garden is approximately 200 kilometers from Bangkok. It takes around three hours to arrive by private car or public bus.

Website: http://www.qsbg.org/2015_qsbg_rayong/index.asp