The Knights Inn Rock Valley, Iowa is located off of Hwy 18. The motel is located between Sioux City, Iowa and Sioux Falls, South Dakota. The Knights Inn Rock Valley, Iowa is minutes away from Dardt College. Other attractions include Sioux Falls Regional Airport, Northwestern College, Oak Grove State Park, Pahoja Lake and the Orange City Tulip Festival. The Knights Inn Rock Valley, Iowa offers High Speed Wireless Internet, Guest Laundry and Continental Breakfast. AL1 Time Fitness is available for guest use for free and is open 24 hours.