CHALFONT, Pa. (CBS) – If you’re a hardcore fitness addict or just concerned about your health and staying in shape, you may want to check out the 12th annual Philly Fit Bash on Sunday in Bucks County.

It’s billed as the biggest workout party you’ve ever seen: dozens of businesses coming together, featuring everything you can imagine in fitness and health. They include gyms, yoga, karate and dance studios along with personal fitness trainers and nutritionists.

“I think the point might be not doing anything the fad way anymore; that’s kind of outdated. Doing it the slow, gradual, the proper, healthy way is what’s in,” explains Philly Fit Magazine publisher Jami Appenzeller, who says it’s all about a healthy lifestyle.

There will also be a big workout marathon for people of all fitness levels. The event runs from 11 a.m. until 3 p.m. on Sunday at the Philadelphia Sports Club in Chalfont.

Reported by Brad Segall, KYW Newsradio