Lake Wapogasset Park is on Lake Wapogasset in the Town of Garfield, which is next to Amery. There is a nice covered picnic area and a playground for the kids. The park also houses a boat launch and lots of shoreline, but there is not a swimming area from what I can tell.
The park also contains a trail and bathrooms.
Lake Wapogasset Park
130th Street ~ Amery, WI ~ (715)268-4857