Winchester Lake State Park surrounds a 103-acre lake, nestled in a forested area at the foot of the Craig Mountains, just off US 95 near the town of Winchester. The park offers year-round recreation activities and has a modern campground. Picnicking and hiking are popular summer activities. In the winter enjoy cross-country skiing, ice skating and ice fishing. The vegetation is dominated by ponderosa pine and Douglas fir. Wildlife most commonly seen in the park includes white-tailed deer, beavers, raccoons, muskrats, painted turtles, bald eagles, herons, and wild turkeys. The most popular activity at Winchester is fishing for rainbow trout, which are planted annually by the Idaho Department of Fish and Game. Fishing for bullhead and smallmouth bass is also popular. The lake provides excellent nutrients and supports large populations of all three species. Small boats are allowed; gasoline engines are not.

• Hike around Winchester Lake and keep an eye out for white-tailed deer, beavers, raccoons, muskrats, painted turtles, bald eagles, herons, and wild turkeys.
• Fish for rainbow trout.
• Visit the Wolf Education and Research Center's Visitor Center in nearby Winchester, to observe the wolves up close and to learn about the wolf in its natural habitat.