September has been busy, to say the least. With some sort of festival or event occurring practically every weekend this month, this weekend punctuates the point that September is the best month of the summer — even if we’re a few days past it, officially. Here are some highlights of fun Hamptons activities for your consideration.
Go Offshore in Montauk
Film fanatics, unite! The Offshore Film Festival starts tonight at the Montauk Yacht Club, with a screening of “The Hundred Foot Wave,” starting at 7 p.m., followed by a special panel. On Friday, Sept. 26, the film festival will include screenings of 10 short films. Entry to the festival is free and open for all. For details click here.

Show up for Sag Harbor Music Fest
If it’s music you’re after don’t miss the Sag Harbor American Music Festival, which starts tonight at the Sag Harbor Whaling Museum and continues at over a dozen venues throughout the weekend. Click here to see more on the festival plus who’s performing when and where. There’ll be about 40 musical acts playing throughout the weekend at nearly a dozen locations across the former whaling village.
Take a step back in history at SCC
“Homefront to Battlefront,” a collaborative pop-up exhibition series that depicts what life was like on Long Island during World War II, hosted by Southampton Cultural Center (25 Pond Lane, Southampton, 631-287-4377), continues tomorrow, Sept. 26, with a lecture about Camp Upton, located in Yaphank, on the present-day location of Brookhaven National Laboratory. Starts at 11 a.m.
File in for a furniture exhibition in Bridgehampton
An opening reception for “David Ebner: Five Decades of Original Studio Furniture Handcrafted on Long Island” is tomorrow at the historic Nathaniel Rogers House in Bridgehampton (2539 Montauk Highway, 631-537-1088) from 5 to 7 p.m. Ebner, a Brookhaven resident, is well-known for his innovative use of wood, creating pieces with fluid lines and harmonious forms, earning him a reputation as a craftsman and sculptor.

Keep on shuckin’ on Shelter Island
Are you just mad about oysters? Then head to the Shelter Island History Museum (16 South Ferry Road, Shelter Island, 631-749-0025) this Saturday, Sept. 27, from 4 to 7 p.m. for the “Oysters ‘R’ Here” celebration. Festivities will include beer, wine, light bites, charcuterie and all-you-can-eat local oysters. Live music will be provided by Peconic County Ramblers and there’s a raffle and silent auction items, plus a special souvenir glass. Meet Oscar the Oyster, the mascot of the Shelter Island Oyster Company, which ran from 1878 until 1960 (talk about hard-shelled!). General admission is $100. Grab your tickets here.
Check out big trucks with CMEE
Saturday is Big Truck Day at the Children’s Museum of the East End in Bridgehampton (376 Bridgehampton-Sag Harbor Turnpike, 631-737-8250). From 10 a.m. to 2 p.m., families with children ages 2 to 10 will explore and interact with some of the moving trucks that share our roads. Tickets are $5 for members, $25 for non-members. To register, click here.
Be a mighty man (or woman) in Montauk
The annual MightyMan Montauk (Sprint) Triathlon Festival is this Sunday, Sept. 28, at Fort Pond (62 S. Erie Ave.) in Montauk. A big event, this festival of races is one of the few metro area races that offers three triathlon distances to accommodate all race levels and interests. The swimming component is 750 meters, out and back in Fort Pond, a freshwater pond. The bike distance (17k) is one loop through Montauk and the 5k run is a mix of rolling and flat terrain. Registration starts at $180. To register (or donate), click here.
Hear some familiar tunes at the library
The Julie Bluestone Duo performs at Montauk Library (871 Montauk Highway, Montauk, 631-668-3377) this Sunday starting from 3 p.m. Featuring Julie Bluestone, a flute/saxophone/clarinet player, and Grammy-nominated Bill Smith, a pianist and keyboardist, the duo’s concert will feature selections from the American Songbook to the Latin sounds of Tito Puente, and everything in between. Concert is free and open to the public.

Talk about climate change at Guild Hall
“The Matthiessen Talks: Bill McKibben” is this Sunday at 4 p.m. at Guild Hall in East Hampton (158 Main St., 631-324-0806). Presented with the Peter Matthiessen Center, Sunday’s talk will see writer, activist and environmentalist McKibben spreading his message about climate change, including revelations in his new book Here Comes the Sun: A Last Chance for the Climate and a Fresh Chance for Civilization. McKibben’s presentation will be followed by a conversation with environmental activist and PMC president, Alex Matthiessen. Tickets are $20 for general admission, $18 for members and are available here.