Paulina Bellsky, the ship's physical therapist and first mate, waves to Rob Klein as he disembarks the Impossible Dream prior to Wednesday's sail. Klein, a Florida resident, sailed up the east coast with the crew.

The Impossible Dream, a wheelchair accessible watercraft, and its crew, spend the summer days sailing up the east coast from Miami, offering free sailing trips to wheelchair users. The boat is equipped with a lift, extra handles and low countertops. The Impossible Dream came to Philadelphia to celebrate the Fourth of July and took former rehabilitation patients sailing.