Sebastian Inlet area goes back to the end of the last ice age. The barrier islands formed from sandbars off the coast of the mainland. As vegetation took hold on the sandbars, animals moved in, followed by the first human inhabitants, the Paleo hunters. The Ais Indians were more recent inhabitants of the barrier islands. They were a tribe of hunters and gatherers who lived off the bounty of the land and sea. By 1760, all of the Ais Indians were gone. Like the other natives of Florida, they succumbed to European diseases and mistreatment.
Atlantic coast of Brevard
County, at a point where a channel links the Indian River
with the Atlantic. Part of the Park is south of the Inlet on Orchid
Island in Indian River County.