Summer Calendar of Events April 10, 1999 Share 1 -- From May through September, communities across New England stage dozens of special events, festivals and fairs. Following is a sampling. May1 to Nov. 6 (two to three times monthly). Waterfire. Saturdays from sunset to past midnight, Providence, R.I.'s rivers are illuminated in an extravagant display of 40 bonfires accompanied by taped music. (401) 272-3111.16 to June 12. MooseMainea. Regional celebration of the moose with moose safaris, educational exhibits, family fun day and the MooseRiver Canoe Race. Maine's Moosehead Lake Region. (207) 695-2702.22 to 24. New Hampshire's Annual Lilac Festival. Carnival rides, flea market, fireworks, a parade, entertainment and a golf tournament in celebration of the annual floral display. Lisbon. (603) 828-6336.29 to 31. 15th Annual Lobsterfest. Old-fashioned outdoor lobster bake on the banks of Connecticut's Mystic River. Mystic Seaport, Conn. (860) 572-5315.June1 to 6. Newport (R.I.) International Film Festival. Major independent films make their debut. (401) 245-0121.18 to July 3. Fourth Annual International Festival of Arts & Ideas. World-class event with theater, classical jazz and popular music, children's activities and a street festival. New Haven, Conn. (203) 498-1212.19 to 20. Vermont Heritage Weekend. Three dozen historical societies in central and northeastern Vermont open their doors this weekend in conjunction with the 80th anniversary of Cabot Creamery. Cabot and neighboring communities. (877) 229-5941.29 to July 5. Boston Harborfest. Some 170 events celebrating Boston's maritimehistory include Jazzfest, fireworks, children's day, chowderfest, historic reenactments and more. (617) 227-1528.July4 to 10. Festival on the Green. Five days of free musical performances of virtually every genre. Middlebury, Vt. (802) 388-0216.23 to 25. Lowell (Mass.) Folk Festival. Performances by musicians, dance troupes, storytellers and puppeteers on six outdoor stages. (978) 970-5000.30 to Aug. 11. Festival de Joie. Multicultural celebration focusing on Franco-American heritage. Lewiston, Maine. (207) 728-7000.31 to Aug. 8. 66th Annual League of New Hampshire Craftsmen's Fair. More than 200 crafters and artists display their wares. Sunapee, N.H. (603) 224-3375.August4 to 8. 52nd Annual Lobster Festival. Heritage festival featuring exhibits, crafts, marine tent, boat rides, children's activities, ship tours, train rides and thousands of pounds of Maine lobster. Rockland, Maine. (800) 562-2529.19 to 22. Weekend of Coaching in Newport. Occurring only once every three years, this event recalls the gilded age of horse-drawn carriages; four days of pageantry, parades, drives of historic coaches, gala parties and exhibitions on the grounds of The Elms, one of Newport's historic mansions. Newport, R.I. (401) 847-1000.September10 to 12. 22nd Annual Norwalk (Conn.) Oyster Festival. Waterfront festival celebrates the seafaring past of Long Island Sound. (203) 838-9444.16 to 18. New Hampshire Highland Games at Loon Mountain. Largest Scottish festival in the Northeast, with displays by over 30 clans. Lincoln, N.H. (800) 358-SCOT.17 to Oct. 3. The "Big E." New England's largest agricultural fair includes a big-top circus, horse show, agricultural exhibits, daily parades, lumberjack show, rodeo and children's activities. West Springfield, Mass. (413) 737-2443.