Kids also may want to check out the discovery boxes and educational displays. Wetlands Awareness Day takes place Sunday noon to 3. Highlights include wetlands and wildlife presentations, live entertainment, refreshments and children activities such as crafts, a cake walk, face painting and games. Admission is free, but the children's activities require tickets, available for 25 cents apiece. For information about other spring family programs, contact these nature and visitor centers or visit the park Web sites.
Many programs are free, and most require advance registration.
5200 Glover Rd. 1400 Glenallan Ave., Wheaton. Maryland Route 197, Laurel. 11950 Clopper Rd., Gaithersburg. The facility, closed for renovation, will re-open in June with new exhibits and animals.