Grind

Hamptons Adult Hardball, a new over-30 wood bat baseball league, has a playoff doubleheader set for Sunday starting at 10 a.m. at Sag Harbor's Mashashimuet Park.

Ralph Lauren's East Hampton stores will donate 10 percent of all sales today and Saturday to the Center for Therapeutic Riding of the East End.

The Hamptons International Film Festival will return this year beginning on Oct. 7 with a fully in-person schedule of events and the opening night film "The First Wave" by Matthew Heineman.

The Springs Brewery, a new business started by Lindsay Reichart and Gunnar Burke, who live locally, will debut its first cans of beer on Saturday in a pop-up at the Springs General Store between 8 a.m. and 2 p.m. The brewers call it Arethusa and describe it as "citrus forward, with lots of flavor and low bitterness."

Five East End restaurants have earned the designation of an Ocean-Friendly Restaurant from the Surfrider Foundation, joining a group of more than 600 restaurants nationwide that commit to low-plastic endeavors. Rosie’s Amagansett, Organic Krush Amagansett, La Fin in Montauk, the Maidstone Hotel in East Hampton, and First and South in Greenport have all obtained the status.

The New York State Department of Environmental Conservation is asking residents to be on the lookout for infestations of Asian longhorned beetles, a 1.5-inch-long, black-and-white invasive insect that has reached central Long Island.

On Tuesday, the Hamptons Observatory will host a free virtual talk where Dr. Zimmerman of NASA will discuss NASA's Nancy Grace Roman Space Telescope.

Wings Over Haiti, which built a school near Port-au-Prince and has plans to build another, will benefit from the Hamptons Artists for Haiti fund-raiser at the East Hampton Airport on Saturday, Aug. 7, from 5:30 to 8 p.m. The organization was established by Jonathan Glynn, a Sag Harbor artist, in 2010.

Taylor Barton, a singer-songwriter who lives in Amagansett, is coming to the East Hampton Library to perform and talk about her new autobiography, "I Pitched a Tent in Hell," on Friday, Aug. 13, from 6 to 8 p.m.

A fund-raiser for Capt. Skip Rudolph of the Montauk charter boat Adios, who is battling medical issues, will happen on Tuesday at 6:30 p.m. at La Fin restaurant, at 474 West Lake Drive at Montauk Harbor.

The third annual Hamptons Dog Show happens on Saturday from noon to 3 p.m. at the American Legion Hall in Amagansett.

Four of the 26 water bodies tested last week by Concerned Citizens of Montauk had high levels of the enterococcus bacteria, and three had medium levels. "Bacteria levels seem to have normalized at most of our sites, with the exception of a few of our typically problematic locations," Kate Rossi-Snook of C.C.O.M. wrote.