This is one of our favorite places to bring Millie, our geopup. She adores making new friends here. We always felt there should be a cache here, so we finally decided to hide one. It is outside the fenced area, so no need to feel awkward about visiting here without a dog of your own. But if you do have one, definitely bring her (or him).
You are looking for a clear, waterproof container in my least favorite place to look for caches.