Colossalcon Prime

Colossalcon Prime is an anime, gaming, and Japanese pop culture convention held in Sandusky, Ohio, USA. It's the original, flagship Colossalcon event (running since 2002, at this venue since 2009), known for its location at the Kalahari Resort and Convention Center, whose indoor waterpark is one of the largest in the country. The con runs over Memorial Day weekend each spring and blends typical convention programming — cosplay contests, artist alley, panels, DJ sets — with resort amenities like the waterpark and arcade.