Tisbury Town Picnic, noon to 4 p.m., Tisbury Waterworks overlooking Lake Tashmoo. Grills provided, hot dogs, watermelon. Games for children. Pony rides, so no dogs allowed. All are welcome. Islandwide event.
Opera at Featherstone presented by Wendy Taucher Dance Opera Theatre and benefitting Island Theatre Workshop Opera Rocks. From 6 to 8 p.m. at Featherstone. Admission $25 to $500. Call 508-693-1850 or visit featherstoneart.org.
Annual Seafood Buffet & Auction with live music, cocktails and seafood on the wharf in Vineyard Haven. Major fundraiser for Sail MV. Reservations, $175 per person or $350 for VIP tickets. Visit sailmv.com.