Kayaking among the Cypress Trees (southern Delaware): A paddle on an early fall day in the cypress swamp of Trap Pond is a peaceful, exhilarating way to get some exercise. The changing leaves are gorgeous, the water is still warm, and most bugs are gone. Coastal Kayak offers tours.
Going "Downy Ocean": Head for the crowded beaches of Ocean City, Maryland (with all those restaurants, shops, and golf courses), or to the quiet public beaches of Rehoboth or Bethany, Delaware. Both have their charms. The sand is white and clean; the waves can be gentle or furious (watch for the red warning flags). The sand crabs are used to being dug up, and the sea gulls will keep an eye on your snacks. (Don't give in and feed them -- it can be pretty scary.)
Bicycling at the Delaware Shore: Grab a helmet and head onto Route 1 for a ride along flat road by the sea. Or, better yet, ride between Rehoboth and Lewes on the Junction and Breakwater Trail.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.