Variety is the key word when referring to the natural features of Acadia National Park. While many parks have been established to highlight and protect a very specific natural feature, visitors to Acadia experience a wide diversity of ecosystems and biological communities. With elevation in the park ranging from 1530 feet to sea level, animals and plants inhabit zones ranging from sub-alpine to intertidal. Ocean, mountains, lakes and streams, wetlands, forests, meadows, and beaches are all found within the roughly 45,000 acres of Acadia, and each feature makes its unique contribution to the natural tapestry.