The actual cache is a type of hide I've seen before, but maybe just a tad more difficult, so I'm giving it 2 stars. Please, please return the cache EXACTLY where you find it so that it cannot be seen.
This cache is hidden in one of the 24 parks and facilities of the Niles Park District.
Oak Park
Lovely 5.25 acre park located at Lee & Ottawa
This park offers a large playground, two tennis courts, a basketball court, a softball/baseball field, a picnic area, and is the only park in Niles to offer outdoor ice skating.
Stealth is important! Use common sense when making this find when children are present.
This cache is part of a small series of park caches inspired when I noticed all the parks in the area that start with the letter 'O' and don't already have caches!