You're looking for a small rectangular Rubbermaid locking container. (The original container placed in 2005 was a smaller glass jam jar, then it was replaced with a custom-painted round Lock-and-Lock style canister in 2006. That one was replaced with a new container in 2021.)
The cache is hidden just off the trail in this quiet but fun park in the city's south end. Fun for the family, with a playplace near the parking area (complete with zip line!), games fields, small pond, and lots of trails. Also a quaint and tasty (so says Parrot, I'm not so certain though) apple orchard. There's even an outhouse nearby.
Note that this cache is NOT winter-friendly -- at least not after a couple of snowfalls and ice-packs. There is room for small trades.
Enjoy Parrot's first geocache hide!