Alum Creek State Park offers multiple public parking areas and boat launch ramps providing access to the 3,387-acre Alum Creek Reservoir, with four main launch ramps available for general public use plus an additional ramp reserved for campers.

The parking areas support diverse water activities including boating, fishing, paddling, and swimming, with amenities such as restrooms, picnic facilities, and life jacket loaner boards at select ramps (New Galena, Cheshire, and Marina locations).

The northern portion of the lake features a no-wake zone ideal for paddling through tree-lined shores and sheltered inlets, while the southern section allows unlimited horsepower for larger watercraft.