The Emlen Physick Estate, 1048 Washington St., becomes an outdoor marketplace as vendors from throughout the Northeast display their wares. Free admission. Saturday, May 3, 10 a.m. to 4 p.m. Free parking available. Sponsored by the Mid-Atlantic Center for the Arts & Humanities (MAC). For more information, call 609-884-5404 or 800-275-4278 or visit www.capemaymac.org.