IDLife Group Challenge Workout! Zumba At The City and Club Rachel Fitness Zumba! This is a group for anyone who is interested in getting fit in a fun and effective exercise environment. This Group Challenge Workout offers a great support system for anyone looking to lose weight or tone up with muscle gain. We also sample great nutritional products that can help you to meet your fitness goals (Energy Drinks, Protein Shakes, Healthy Snacks, etc.) Both of these Zumba classes and our weight loss products, are economical and easy to use.