The Steelman Racing Nockamixon Swim Challenge takes place at Nockamixon State Park Tohickon Boat Launch, marking the beginning of the Steelman Racing Open Water Swim Series. Participants can choose from various swim courses in Lake Nockamixon's clear waters, which are typically around 70 degrees. The event includes awards for top overall finishers, relay teams, and age divisions ranging from 15 to 80 years old. Following the swim, participants can enjoy a post-race gathering with food and music.