Square Lake Park offers a motorized boat launch with 12 trailer spaces, open 6 a. m. to 11 p. m. during boating season and available for winter access with open speed.

The facility also features a canoe/kayak launch and fishing pier, along with amenities including a self-service pay station, picnic areas, and grilling facilities. A Washington County Parks vehicle permit ($7/day or $30/year) is required for park access.