# Gyms in Ontario > A consistent workout routine depends on having a reliable place to train. Source: https://www.atly.com/united-states/california/ontario/best-gyms ## Places (6) ### 1. Crossfit Lifted Family-owned gym offers a supportive community with challenging workouts and flexible class times. Members enjoy a varied equipment setup that suits all skill levels and busy schedules. - Address: 1500 S Milliken Ave, Ontario, CA 91761, USA - Atly: https://www.atly.com/location/CrossfitLifted ### 2. THE GYM Ontario Fitness center features dim lighting and full surround sound for a fresh vibe. Unique machines and ample space keep workouts smooth with no waits. Open 24/7, it stays clean and well-maintained, attracting serious fitness fans. - Address: 130 W G St, Ontario, CA 91762, USA - Atly: https://www.atly.com/location/THEGYMOntario ### 3. Heart & Pride Muay Thai Large, clean gym offers world-class coaching in Muay Thai. Friendly, welcoming atmosphere supports focused training for all levels. Organized space enhances the overall experience and skill development. - Address: 3550 E Philadelphia St #140, Ontario, CA 91761, USA - Atly: https://www.atly.com/location/Heart-Pride-Muay-Thai ### 4. APE ARENA Gym offers a supportive community with a welcoming atmosphere that motivates progress. Flexible hours fit busy lives while machines track results. Workouts are challenging yet addictive, making fitness journeys rewarding and consistent. - Address: 205 W Holt Blvd, Ontario, CA 91762, USA - Atly: https://www.atly.com/location/APEARENA1 ### 5. 24 Hour Fitness Spacious gym offers premium equipment and a great pool for varied workouts. Staff like Princess and Maddie create a welcoming atmosphere. Bright, clean space with a strong basketball scene and recovery amenities adds extra value. - Address: 2580 S Archibald Ave, Ontario, CA 91761, USA - Atly: https://www.atly.com/location/24HourFitness88 ### 6. Planet Fitness Spacious gym offers new equipment and a calm atmosphere with moderate music. Staff are helpful, making it great for beginners. Security in the parking lot adds safety despite some outside concerns. - Address: 1670 E 4th St Ste D, Ontario, CA 91764, USA - Atly: https://www.atly.com/location/PlanetFitness56 ## 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.