Des Moines Register: The sight of hundreds of people huddling and linking arms before tubing down the 15-story slope at Sleepy Hollow Sports Park in Des Moines startled the longtime owners. Rick and Mary Flatt were reviewing old photos and videos showing carefree, pre-pandemic crowds to potentially include in new marketing. But the visual reminder of their peak business — 600 people on a good Saturday — made them realize it would be impossible to welcome customers back this winter amid the coronavirus pandemic. Instead of creating new marketing, the Flatts released a statement: For the first time in 27 years, Sleepy Hollow would not open this season.