Posted on the gate to the park is a pretty extensive list of rules that, if enforced, would limit the value of the park. The rules go as far as to state "no running" which is an impossible expectation when often the purpose of a dog park is to let your canine run around. There is not enough room for any seriously long range games like fetch or frisbee, but the dogs should be able to run around, and they do seem to do so freely here.
Dog bags are available as well as garbage cans placed at the entrance. This park is fenced, and there are separate sections for small and large canines. The ground is mostly wood chips. Park benches are placed along the inside of the fence. Although there are several spaces, seating can fill up fast and be a little limited.
A water fountain is available at the Mentor Dog Park so your canine can stay hydrated as there is a limited amount of shade. There are no pavilions to cover any benches, and there are no trees to provide natural shade. The best you will get is early in the morning, or late into the evening, some of the local buildings may provide some shade.
The Mentor Dog Park is maintained and provided for by the city of Mentor, and they do a good job. The fixtures stay in good shape, garbage gets removed regularly, and the grounds cleaned often, but the city of Mentor does ask for donations or volunteers to help maintain it. If you wish to volunteer, they ask that you call Jim at (330) 351-3351.