Swimming
Swimming is allowed in Monsanto and Pim lakes at the park. Both are easily acessed, and have great swimming beaches. They are open from 7 a.m. to 8 p.m. during the summer season. Cans, glass bottles, coolers, fires, alcohol and pets are prohibited at both beaches.
Monsanto lake beach has a large pavillion with tables, available on a first-come, first-serve basis. There are also benches, a volleyball net, toilets, and a change house. Pim lake, the smaller of the two, has benches, picnic tables, barbecue grills, toilets, and a change house.
Fishing
St. Joe State Park has four stocked lakes for fishermen, who can catch bass, catfish, or crappie. Monsanto lake is the largest of the four lakes, measuring approx. 25 acres in surface size, and around 30ft at its deepest point. Apollo lake and JoLee lake are next in size, and Pim lake is the smallest. Boats are allowed on all four lakes, but only electric motors can be used.
State fishing regulations apply, and a fishing pass must be obtained for access to Apollo and JoLee lakes.