The Holiday Inn & Suites Maple Grove is home to Venetian Indoor Waterpark . The Venetian features 25,000 sq. ft of water fun, zero entry levels, and two four-story water slides open Fridays 4pm-10pm, Saturdays 8am-10pm and Sundays 8am-2pm. Open to hotel guests only, and four passes are issued with every room reservation. Please call the hotel directly for waterpark hours of operation 763-425-3800.