First Ascent Block 37
First Ascent Block 37 is a rock-climbing gym in the Loop that also runs a full fitness center, with weightlifting areas, personal training, physical fitness programs and a yoga studio alongside its climbing walls. It offers bouldering caves, overhangs and slabs at varying grades, drawing both dedicated climbers and general gym members. The downtown location gives it easy access for anyone working in the Loop.
What people praise
- Rarely crowded even with a large, varied space
- Wide variety of climbing terrain from slabs to caves and overhangs
- Staff are friendly and knowledgeable, offering thorough facility tours
- Welcoming to complete beginners as well as experienced climbers
Worth knowing
- Primarily a climbing gym, so it's a different experience than a standard weight room
Our take: The top pick if you want climbing built into your workout, with a fitness center attached for everything else. Highly rated across a large, established review base.



