Fitness Underground
1410 E Foothill Blvd. Suite JK, Upland, CA, 91786
About this gym
Fitness Underground is a 24-hour access gym in Upland, California. Members receive a keyfob for round-the-clock entry, 365 days a year. The gym emphasizes low crowd density, well-maintained training equipment, and gym etiquette, and offers 1-on-1 personal training tailored to individual fitness levels and goals. Amenities include an infrared sauna, private bathrooms, showers, changing rooms, and 24/7 vending and meal preps.
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