Arnolds Park Amusement Park will open for the season on Saturday, May 17, with hours 11 a.m. - 7 p.m.
The annual HAPI Family Free Fun Night will be May 16, with free admission to preview the park for the season.
Upcoming events include Antique & Wooden Boat Show on July 26 and the Okoboji Blues Fest August 2.
Free Preservation Plaza Concerts return. Shows include:
* Kory and the Fireflies - July 4.
* The Nadas, July 5.
* The Blue Band, July 12.
* The Rumbles, August 9.
* Molly Hatchet, August 16.
All shows begin at 7:30.