Sri Nakhon Khuean Khan Park, also known as “Suan Klang” in the local community, is the habitat of various plants and animal species. There are more than 100 species of plants, most of which are evergreen plants which grow well in brackish water and seawater, such as Rhizaphora apiculate, Millettia leucantha, Mangrove apple, coconut, Cordyline fruticosa, Verginia creeper, Flagellaria indica, Queen sago palms and Stenochlaena palustris, etc.
Another significance of Sri Nakhon Khuean Khan Park is that it perfectly replicates the entire ecosystem of Bang Kachao in 40 Rais of the forest ecological restoration study and leaning area. The park is also a fascinating place for bird watching because it is the center for more than 100 species of local and migratory birds, such as Peregrine Falcon, Little Egret, Verditer Flycatcher, Common Myna, Black-crested Bulbul and Pink-necked Green Pigeon. Most of these birds are colorful and famous among bird watchers, and are protected species under the Wildlife Preservation and Protection Act B.E. 2535.
The park provides living space for several reptiles, such as Water monitors, Garden fence lizards and Reticulated pythons, which all help to maintain the ecological balance in the area by controlling certain types of fish, such as Barbonymus gonionotus, Nile tilapia, Rohu, Toxotes chatareus and dermogenys, as well as limiting waste. The variety of life in the park shows that this area is a feeding ground, spawning ground and shelter for many types of animals.