The reservoir is home to a variety of fish species like rainbow trout, brown trout, walleye, and largemouth bass. Besides fishing, visitors can enjoy hiking, biking, and camping in nearby areas. To increase your chances of a successful fishing trip, it's best to use lures and baits that mimic the natural food sources of the fish, and fish during early morning or late afternoon. The best time to visit the Croke Reservoir is during the summer months, from June to August, when the average temperature ranges from 60°F to 80°F.