>>1105730The islands of the Chesapeake are a blast to explore by boat. You could canoe/ kayak in Blackwater Refuge. All the way to the north is Fair Hill NRMC, lots of trails there and it isn't crowded. I'm pretty sure the northernmost bald cypress swamp somewhere near Seaford, DE. The northern beaches of DE are awesome for surf fishing/ offroading.
tldr: it's slim pickins if you're a landlubber. Get a vessel OP! I was bored as shit until I got a canoe and started beaver/ otter/ muskrat/ nutria trapping/ saltwater angling, crabbing, and hunting sika deer/ ducks/ geese