This is a very cool park with tons of amenities from the rec center (haven't been inside) picnic areas, trails, playgrounds, splash area, skate park, the works. I am going to focus this on the multi use trails.
Heading to the south the trail goes down to Grand Ave where it loops around to the west side and heads north just past Bell Rd. This loop is about 9 miles and with the underpasses is completely free of car traffic. Along the trail are a few rest areas that have benches, one of the rest spots has a pavilion and water fountain.
When you take the trail north of the park, it loops past the Peoria Sports Complex, hooks up with Thunderbird Paseo Park and meanders southeast and connects to the canal trail. I have taken this down to Central Ave.