ASSATEAGUE ISLAND: Includes Assateague Island National Seashore; Assateague State Park, Md., (reachable from Ocean City, via 611 to Bayberry Drive) and Chincoteague National Wildlife Refuge (reachable from Chincoteague Island, Va., via 175); www.nps.go/archive/asis/home.htm or (Maryland) 410-641-1441 or 757-336-6577 (Virginia). Entrance fee for cars on either side, $10.

DELMARVA BIRDING WEEKEND: April 26-29, with boat tours, guided canoe and kayak trips, hikes and other bird-watching events around the Delmarva Peninsula; or 800-852-0335.