This core/calisthenics course has been offered by Jack and & Adams for years now and even received a shout out from Runner’s World magazine.

It’s not for the faint of heart, but it’s worth it. It’s a solid hour of crunches, push-ups, planks and all sorts of other things that are sure to make your abs stronger. Swimsuit season will be here before we know it, so get after it!

Bring a mat, water and a positive attitude!