Together they comprise a vast, almost pristine wilderness and recreation area. The park was established as a national monument in 1968. In 1980 it was enlarged to 181,500 acres and designated as a national park to protect a rare combination of terrestrial and undersea life, to preserve a scenic subtropical setting, and to provide an outstanding spot for recreation and relaxation. This is a paradise for marine life, water birds, boaters, fishermen, snorkelers, and divers alike. The water is refreshingly clean, and extraordinarily clear.
Forests are lush, dark, humid, and always green.
Many birds, butterflies, and other animals live in these woods. No less odd or diverse is Biscayne's underwater world. At its center are the coral reefs. Unlike the ocean depths, which are dark and nearly lifeless, the shallow water reefs are inundated with light and burgeoning with life. Brilliantly colorful tropical fish and other curious creatures populate the reefs.