Petersfield Provincial Park is a day-use picnic park situated on Cape Breton Island, overlooking the south arm of Sydney Harbour off Route 239.

The park carries a notable cultural history, containing remnants of four distinct cultural periods dating from the late 18th to the mid-20th centuries, interpreted through on-site signage. Visitors can access approximately 7 km (4.

5 mi) of trails suitable for hiking and cycling. Picnic tables are available seasonally, and the park remains open year-round for winter activities, though no facilities or services are provided outside the regular season.