Sunny Valley Preserve in New Milford will host its 25th annual Open Farm Day Sept. 23 from 10 a.m. to 3 p.m.

The free event at 8 Sunny Valley Lane will take place rain or shine.

The event will feature hayrides, animal petting, visits with oxen, a bee display, pumpkin picking and painting, face painting with the Village Center for the Arts, music by the Blue Yodels, a scavenger hunt and displays of antique and modern tractors and farm equipment.

New this year will be pony rides for children and adults; border collie herding demonstrations, followed by a meet-and-greet with the dogs and ducks; and sheep demonstrations.

Lunch items such as organic hot hamburgers, hot dogs, salads and vegetarian fare served by the Youth Agency will be available.

Beginning at 10 a.m., a brunch of frittatas, scrambled eggs, sausage, fresh fruit and salad catered by Executive Cuisine will be available to purchase.

Tickets for brunch are $9.99 for adults and $24.99 for a family of five. Children under 5 will eat for free. Tickets are available at nature.org/OFDBrunch.

A limited number of tickets will be available that day.

“We want kids to have a really good time, and have the opportunity to learn what goes on at working farms,” said Wayne Woodard, director of Sunny Valley Preserve. “Open Farm Day is our way of thanking our community.”

Sunny Valley, which is part of the Connecticut holdings of the Nature Conservancy, is home to five different farms in Bridgewater and New Milford. They range from a farm that sells raw milk to a large haying operation to one of the state’s biggest Community Supported Agriculture programs.

One farm is the first grass-fed beef operation in Connecticut to be Certified Grassfed by A Greener World, and Certified Animal Welfare Approved by A Greener World.

Sunny Valley comprises open spaces where birds, deer and rabbits can be seen and a network of walking and cross-country skiing trails that are open to the public from dawn to dusk.

Sponsors are Dunkin’s Inc., Joanne and Wayne Woodard, Kohl’s, Marandola Fuel Services, New Milford Youth Agency, Overhead Door of Brookfield, Stone Construction Co., Stop & Shop, Sunny Meadow Farm, Valpak of Fairfield County, Home Depot, RAC Diesel Service Inc. and Union Savings Bank.

For information, call 860-355-3716.