- Address:3900 Newpark Mall #104, Newark, CA 94560
- Phone:(510) 936-4373
- Website:http://www.undergroundfitnessclub.com/
- Rating:2.5
- Hours:
| Mon | 09:00 am - 08:30 pm |
| Tue | 06:00 am - 09:30 pm |
| Wed | 09:00 am - 09:30 pm |
| Thu | 09:00 am - 09:30 pm |
| Fri | 06:00 am - 08:00 pm |
| Sat | 08:00 am - 07:00 pm |
| Sun | 09:00 am - 06:30 pm |
