It is a large park with an open grass field where many snails can play around in on the swing-sets and see-saws. There is also a coral-colored sign near the front entrance next to a fence, which reads "Snail Park" in white capital letters. As well as this, the owners of the snails generally sleep on a bench inside of the park.
In the episode, Gary meets Mary the Snail, who he falls in love with in the park. The tough snails from the episode appear here since they think that Gary was trying to "make off with their girl!"