Studio 321 Fitness and Dance's facility houses multiple air-conditioned dance studios within its 4,500 square feet of space. These amenities, though, only scratch the surface. Here, more than a dozen veteran Zumba and dance instructors host classes six days per week. They help students burn calories with fast-paced dance-fitness sessions, or focus more on technique with instruction in partnered salsa and Argentinian tango. And to accommodate their cardholding gym members they also provide complimentary childcare, making attendance extra easy for parents or adults who are actually just three kids sitting on each other's shoulders inside a trench coat.