WHAT Old Westbury Gardens opens one of the Island's most elegant picnic venues to another summer of midweek musical fare. The Picnic Pops Summer Concert Series gets in the swing starting Wednesday evening, July 8, with the 12-piece Harlem Speakeasy Orchestra. Gates open at 5 for picnickers and those who just want to stroll the gardens. Dance lessons begin at 6:30 -- yes, there's a dance floor on the lawn -- followed by the concert. The series continues each Wednesday through Aug. 6 with Vanessa Trouble & The Red Hot Swing. In between you can catch Tamar Korn's A Kornucopia, Dr. Zsa's Powdered Zydeco Band and The Brain Cloud.

WHEN | WHERE 7 p.m. Wednesdays through Aug. 6, Old Westbury Gardens, 71 Old Westbury Rd.

ADMISSION $10, seniors $8, children 17 and younger free; 516-333-0048, oldwestburygardens.org

WHAT ArtHamptons, the South Fork's longest-running fine art show and sale, returns for an eighth summer with new dates -- on and around this weekend's Fourth of July holiday -- and a new location. Besides works by big-name artists represented by galleries from New York to California and London to Tel Aviv, the fair also recognizes one of Long Island's own. Stan Brodsky will be recognized with a 50-year retrospective exhibit and the 2015 ArtHamptons artist award, presented at 3 p.m. Saturday. Also, you can you can enjoy an "ARTrageous Fourth" with a "Made in America" theme that includes Texas barbecue and complimentary handcrafted spirits. As for the art, pricetags tend to be investment grade. The holiday-weekend fair will be followed next week by Market Art + Design, which has moved to Fairview Farm at Mecox Bays. If the art isn't stunning enough for you, take in the waterfront views. Meanwhile, Art Southampton -- emphasizing modern and contemporary art -- moves to Bridgehampton, where all three fairs are located in air-conditioned pavilions.

ArtHamptons: Thursday, July 2-Sunday, July 5, Lumber Lane and Scuttle Hole Road, Bridgehampton. Opening night party, 7-9 p.m. Thursday, which benefits Guild Hall, East Hampton. Fair admission: $20-$125; 631-283-5505, arthamptons.com

Market Art + Design: July 9-12, Fairview Farm at Mecox Bay, Bridgehampton. Admission: $20-$75, 212-518-6912, artmarkethamptons.com

Art Southampton: July 9-13, Nova's Ark Project, 60 Millstone Rd., Bridgehampton. Admission: $25-$40, seniors, students $15; children 12 and under free; 305-517-7977, art-southampton.com

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WHAT Arena Players' 27th annual Summer Shakespeare Festival puts on a comic face first with its under-the-stars presentation of a romantic favorite, "Twelfth Night," before switching to tragic with a tale of mad jealousy. "Shakespeare in Love" borrowed the name Viola, "Twelfth Night's" girl-dressed-as-a-guy heroine (a favorite Bard device), for young Will's love interest in the Oscar-winning movie. Besotted by love and wearing breeches in the play, Viola pursues Duke Orsino while he mistakes her twin, Sebastian, for a girl. The cross-dressing begins Sunday in the cobblestoned courtyard of the Vanderbilt mansion with its picnic-inviting views of Northport Harbor. Tragedy takes over on July 29 with "Othello." Iago besmirches the reputation of his master's bride, Desdemona, insinuating that she's cheating on him with Othello's young military rival, Cassio.

WHEN | WHERE "Twelfth Night": 7 p.m. Sunday, 8 p.m. Wednesdays and Fridays , through July 26. "Othello": same hours and days, July 29-Aug. 30, Arena Players, outdoors at Vanderbilt Museum, 180 Little Neck Rd., Centerport

TICKETS $15; 516-293-0674 (631-854-5570 for weather cancellations), arenaplayers.org

Ravi Coltrane celebrates the 50th anniversary of his father's masterpiece, "A Love Supreme," in a concert with his quartet, 8:30 p.m. Sunday, July 5, at Huntington's Heckscher Park as part of the free Summer Arts Festival. The concert highlights "Coltrane Day," an all-day fundraiser (by donation), including master classes and jazz workshops, 11 a.m.-5 p.m., to help restore the Dix Hills home of John and Alice Coltrane. Details at thecoltranehome.org or huntingtonarts.org, or call the Huntington Arts Council, 631-271-8423.

The 56th annual Morgan Park Summer Music Festival opens Sunday night, July 5 at 7:30 with an Americana concert by the North Shore Pops Concert Band. Festival highlights in the Glen Cove waterfront park include "West Side Story" presented by Plaza Theatrical Productions Aug. 2 and conclude with a folk-rock A Band Called Honolee Aug. 30. Free. Bring your own chairs or blankets; 516-671-0017, schedule at morganparkmusic.org