The things you can use them for include: Greens fees for 18 holes of golf; one hour of outdoor tennis; lift ticket for skiing or snowboarding; tubing ticket at the Plunge; Admission to Lake Monocan; Lake Monocan bike or boat rental; discovery ridge activity (bungee, mini golf, climbing wall, inflatables, Rigley's fun park, adventure center, or the zip); admission to the aquatics & fitness center.  Valid Mon-Thurs and non-holidays. Expires 2/23/14