Adventureland
Adventureland in Altoona, just outside Des Moines, has been open since 1974 and is Iowa's largest amusement park. Monster is the steel coaster with the beyond-vertical drop, Outlaw and Tornado are the wooden coasters, and Phoenix, Storm Chaser and Draken Falls add more variety, with a large section of family rides. In the autumn it runs Halloween haunts on select dates.
Summer weekends and the weeks around the Fourth of July are the busiest. Weekdays early and late in the season are usually much quieter. Check the live queue times before you go and use the crowd calendar to find a good day.
Adventureland live queue times Hersheypark
Hersheypark in Hershey, Pennsylvania was founded in 1906 as a leisure park for Milton Hershey's chocolate factory workers and has grown into one of the best coaster parks in the United States. It runs more than a dozen roller coasters: Skyrush and the racing wooden Lightning Racer, the launched Storm Runner and Fahrenheit, the classic Comet, the newer Candymonium and Wildcat's Revenge, and the Great Bear inverted coaster. The Boardwalk water park is included with admission.
The park is busiest on summer weekends and during Hersheypark in the Dark in October, and because it closes several rides early on some days, the schedule matters as much as the crowds. Check the live wait times before you go and use the crowd calendar to find a weekday when the big coasters run with short queues.
Hersheypark live queue times 