Separate play space for 2-5 year olds (tot lot). HOURS: Closed Monday Tuesday-Friday: 4:00 to 9:00 ($10) Saturday/Sunday: 12:00 to 5:00 ($10) Sunday: 5:00 to 8:00 is 21 and older ($5) Grinds Skatepark is indoors and has many contests, challenges, special theme nights and parties. Pads are not required, only a helmet. Grinds is over 7,000 square feet. Includes a micro ramp, half pipe and street course.