Four working farms in Calvert County will open their doors to the public Sunday as part of the county's annual farm tour from noon to 5 p.m.

Participating farms include:

Hampton Farms, a 14-acre horse boarding and training facility at 7940 Flint Hill Rd. in Owings. The farm will feature pony rides, foxhound puppies, farrier demonstrations and more. From Route 4, turn onto Chaneyville Road, pass Northern Middle and High schools, then turn left onto Flint Hill Road.

Poplar Farms, a 150-acre farm at 7141 Old Bayside Rd. in Chesapeake Beach, where trees and hay are grown and cattle are raised. Beekeeping, bluebird exhibits and a portable sawmill will be featured. From Route 4, take Plum Point Road to Route 261 and turn left at Beach Elementary School onto Old Bayside Road.

Taney Place, a Prince Frederick farm on the Patuxent River at 4885 Adelina Rd. Sheep exhibits, horseback riding demonstrations, a petting zoo and pony rides will be offered. Tours here will end at 3:30 p.m. From Route 4, head west on Route 231 and turn left onto Adelina Road.

Old Bay Farm, a 60-acre corn, wheat and hay farm on the site of the Calvert Cliffs Nuclear Plant at 1650 Calvert Cliffs Pkwy. in Lusby. Visitors can see antique tractors, take wagon rides and hike the nature trail. From Route 4, turn into the Calvert Cliffs Parkway and follow it to the Visitors Center.

Fruits and vegetables, crafts, entertainment and refreshments will be available at all of the farms. Admission is free, and parking is available at all of the farms. No pets are allowed except for guide dogs. For more information, call 410-535-4583.