Location: New Smyrna Beach [29.065864, -80.914742] 1.4-mile boardwalk loop plus 1 mile of side trails - easy
To find the park, take I-95 exit 84, New Smyrna. Follow FL 44 east over the causeway into New Smyrna Beach, turning left on Peninsula Boulevard after 5.4 miles. Follow the road for 2.7 miles, until it ends at the Coast Guard Station. Turn right to enter the park, and pay your admission.
The entire loop is wheelchair-accessible, although the side trails to the beach are not—they involve scrambles along sand paths, or staircases up and over the dunes. If you walk your dog here (and many people do), you must clean up after it.