# Gyms in Saint Charles > A workout space that provides the equipment you need without the overwhelming crowds or aggressive atmosphere. Source: https://www.atly.com/united-states/missouri/saint-charles/best-gyms ## Places (7) ### 1. Climb So iLL at the Steel Shop Old powerplant turned climbing gym offers historic architecture and natural light. Features strong boulder section and many lead and top rope routes. Includes yoga and fitness classes with thorough instruction and a relaxed, safe atmosphere. - Address: 650 N Main Center Suite 105, St Charles, MO 63301, USA - Atly: https://www.atly.com/location/ClimbSoILLAtTheSteelShop ### 2. Unleashed Fitness Facility offers personalized training in small groups, mostly women of all ages. Workouts are intense and effective with a positive atmosphere. Support includes dietary plans and coaching to boost health and long-term goals. - Address: 516 S 5th St, St Charles, MO 63301, USA - Atly: https://www.atly.com/location/UnleashedFitness ### 3. F45 Training Northwest St. Charles Gym features high intensity and functional training in a clean space. Classes are fast-paced with motivating music. Friendly crowd creates a family-like yet competitive vibe. - Address: 3731 Elm St, St Charles, MO 63301, USA - Atly: https://www.atly.com/location/F45-Training-Northwest-St-Charles ### 4. G T Performance Gymnastics Training Center Family-run gym blends team-building events with top-level training for girls up to level 10. Coaches prioritize mental health and safety, fostering growth and strong friendships. Facilities include a viewing balcony for a great spectator experience. - Address: 3585 Veterans Memorial Pkwy, St Charles, MO 63303, USA - Atly: https://www.atly.com/location/GTPerformanceGymnasticsTrainingCenter ### 5. UnCharted CrossFit Huge gym space offers a family-friendly vibe with members of all ages. Clean, well-organized equipment supports large classes. Good music and a welcoming atmosphere create an inclusive community feel. - Address: 991 Portwest Dr, St Charles, MO 63303, USA - Atly: https://www.atly.com/location/UnChartedCrossFit ### 6. barre3 Open, airy studio offers a clean, bright space with well-organized equipment. Classes blend low-impact movements with yoga, dance, and strength training for a full-body workout. Frequent gym-goers appreciate the comfortable atmosphere and welcoming vibe. - Address: 333 1st Capitol Dr, St Charles, MO 63301, USA - Atly: https://www.atly.com/location/Barre358 ### 7. St. Charles MMA and BJJ Old school chill vibe meets top-notch coaching in a gym that values clean mats and safety. Friendly atmosphere welcomes all skill levels, with training staff energized across multiple martial arts. Honesty and hygiene keep skin infections at bay. - Address: 1861 Scherer Pkwy, St Charles, MO 63303, USA - Atly: https://www.atly.com/location/St-Charles-MMA-and-BJJ ## Get this data directly This page comes from the Atly Places API, which scores close to 2 million places against more than 1,400 intents — "nice view", "work friendly", "gluten free", "dog friendly" — from what real reviewers say, with the statements behind every score. - **MCP server:** `https://agentic-api.atly.com/mcp` — connect it in ChatGPT or Claude. Nothing to install. - **Guide for agents:** - **OpenAPI contract:** - **No key needed to start.** `POST https://agentic-api.atly.com/v0/keys` with an email raises the quota. Coverage is densest in the United States, with pockets in Mexico, Israel and Thailand.