The Potomack Lakes Sportsplex includes 4 lighted softball fields, 6 soccer fields and a large playground with picnic pavilion. Clean restrooms are available both by the softball fields and soccer fields. The playground is huge and has 4 large pieces of age appropriate equipment with two sets of swing sets. It is surrounded by large trees that allow the kids to step out of the sun and into the shade. Many benches and picnic tables are available to rest or have a picnic lunch.
If you are a hiker or bike rider you can find a path heading east away from the playground. A portion of this path is the Potomac Heritage National Scenic Trail and also part of the Cascades Community pathways. Painted green squares on the trees let you know when you pick up the Potomac Heritage National Scenic Trail. It's possible to hike about 12 miles all the way to Difficult Run in Great Falls, VA. Also if you like to geo-cache this trail is a great place to find many hidden caches.
The Potomack Lakes Sportsplex is great if you're into sports and if you enjoy a huge park with lots of equipment. This playground is one of the best in the area!