Bob Heirman Wildlife Park at Thomas' Eddy
We've posted a hike along the trail here on one of our routes pages.
Turtleback Mountain South Trailhead
Crescent Beach Nature Preserve
Sucia Island
Transporation to Sucia is boat-only. If you don't have a boat of your own, Outer Island Excursions runs a water taxi and will (for an extra fee) bring along your ebike or kayak or let you rent one. There's also some camping spots on the island.