Underground Training

Katie is the best! I love everything about her classes!

Katie is an excellent trainer, our group all
benefit from her personal encouragement
and overall positivity. Highly recommend!

Our gym class is the best I have ever been in

Love Love this class so hard !
Katie is a Fabulous motivator!   Love her!

Fabulous class!!! Can’t wait for next Monday!

I’m obsessed with Underground and ALL of their classes. Honestly has changed my body more than anything else I’ve done- personal trainer, Barry’s, Soulcycle…plus Katie (owner and teacher) is a wonderful human and helped us get adjusted to this community after moving here from NYC during pandemic.

Love ALL her classes even as someone who doesn’t love working out….she makes it fun and fast and effective.

There's no better workout on the North Fork! Katie's classes are fun and efficient: 45 minutes of really hard work that have gotten me in shape fast. Plus, the UG community is so friendly, welcoming, and encouraging that I look forward to workouts. Can't rave enough about this trainer and her gym!

Katie is the best! Love the regimented class structure and music

This class will get that heart rate up! Fast paced, challenging and fun. Katie is there for you every step of the way. Oh and the playlist. Can’t wait for tomorrow’s class!

Fast paced and challenging. No better way to start your morning! Love getting 2 chances to run through the circuit and the mixed weight program really rounds out the class.  Great with to go with friends or solo since everyone is super friendly.