Paddlers heading east can observe major geologic changes that have taken place over millennia. St. George and Dog islands mark the end of a chain of barrier islands that have been formed by sediments deposited by the Apalachicola and Ochlockonee rivers while islands to the east are sections of land isolated by rising sea levels.
Paddling east on the Crooked River through Tate's Hell State Forest you'll have a good chance of spotting a Florida black bear. The second half of the segment spans the entire length of the St. Marks National Wildlife Refuge. Here, you'll find unspoiled marshy vistas, tree islands, and an historic lighthouse.