Big Eau Pleine County Park's South Unit features two separate poured concrete boat ramps with launching piers, both providing good landings across most water levels.

The facility includes 39 parking spaces (14 for vehicles with trailers and 25 for vehicles only), a dumpster, recycling station, and paved pathways, with a $3/day or $20 annual launching fee.

Additional amenities at the South Unit include picnic areas with shelters and grills, vault restrooms, and access to 60 campsites, making it a comprehensive recreation destination on Big Eau Pleine Reservoir.