African-American Heritage Trail of M.V. By appointment. Non-profit. Benefits trail development. $38 for half-day Island tour; $20 for one-hour tour of Oak Bluffs sites. 508-693-4361.

African American History Tour By appointment. 12 historical sites in 90 minutes. $25; $10 for children under 12. 508-693-8714.

Aquinnah Cultural Center Vanderhoop Homestead, Aquinnah Cliffs. Open Wed., Fri. and Sat., 11 am-3 pm, for house tours. $7; $4 for children. 508-645-7900.

Gay Head Light 5:30-7:30 pm, Aquinnah. Self-guided sunset tours every Fri., Sat., Sun. through Sept. 21. $5 suggested donation; free for children under 12. Under stewardship of M.V. Museum. Closed if raining. 508-627-4441.

Haunted Walking Tours with Holly Nadler. Ghosts & Graveyards of Vineyard Haven, Thurs., 8 pm, meet outside Bunch of Grapes Bookstore on Main St., Vineyard Haven. Ghosts of Oak Bluffs, Tues., 8 pm-meet outside The Secret Garden on Circuit Ave., Oak Bluffs. Ghosts of Edgartown, Wed., 8 pm, meet outside Edgartown Books on Main St., Edgartown. $10; $5 children under 8; free for babies. 508-687-9239.

Martha's Vineyard Camp-Meeting Association Cottage Museum and Gift Shop, 1 Trinity Park, Oak Bluffs. Mon.-Sat., 10 am-4 pm; Sun., 1-4 pm. Museum contains period furnishings from late 1800s; vintage photographs; documents. Campground-related souvenirs: jewelry, books, calendars, postcards, lanterns, and more. $2; $.50 for children. 508-693-0525.

Martha's Vineyard Museum (formerly M.V. Historical Society) Cooke and School sts., Edgartown. Includes Gale Huntington Reference Library of Island History, Foster Maritime Gallery, Boat and Carriage Shed, Children's Gallery, Oral History, Native American Gallery, museum shop, and 18th century Cooke House. Gift shop and Pease House gallery hours: Mon. through Sat., 10 am-5 pm. Library hours: Tues. through Sat., 10 am-5 pm. Adults, $7; seniors, $5; children 6-12, $4; members and children under 6, free. 508-627-4441.

Martha's Vineyard Preservation Trust Buildings Edgartown: Vincent House (1672); Dr. Daniel Fisher house (1840); and the Old Whaling Church (1842). Tours: $10 for all three buildings, children under 12 free. By appointment. 508-627-8720.

Native Earth Teaching Farm 94 North Rd., Chilmark. Wed., Sat., Sun., 10 am-6 pm. Self-guided trail, Quest, animal visits; special events by appointment. Self-serve farm stand. 508-645-3304.

Polly Hill Arboretum 809 State Rd., West Tisbury. Daily, 9:30 am-4 pm. Grounds open daily, sunrise to sunset. Guided tours, 2 pm daily. No dogs. $5 donation; members and children under 12 free. 508-693-9426.

World of Reptiles and Birds Edgartown-Vineyard Haven Rd., Edgartown. Rare birds and reptiles including largest snake in captivity. Island naturalist Gus Ben David gives tours and lectures. Wed.-Mon., 10 am-3 pm. 508-627-5634.