Lake Park Mom Says Sky Zone Membership Cost $800 FARGO, CASS COUNTY (trfnews.i234.me) — A Lake Park mother says she was unknowingly signed up for multiple memberships after her son’s birthday party at a Fargo trampoline park, leaving her with more than $800 in charges. JoAnn Gilbertson says she took her children to Sky Zone… Continue reading Lake Park Mom Says Sky Zone Membership Cost $800