About Us

Julie Schaffer
Sister Bay Crossfit is excited to bring the Crossfit experience to the Northern Door Peninsula. Our classes deliver a fitness that is, by design, broad, general and inclusive. Each workout is also scaleable - we tailor the work out to fit your level and experience. Come experience the workouts, where friends motivate each other and have fun. You’ll discover why CrossFit is one of the best ways to improve your overall health!

— Coach Julie Schaffer

Coach Julie

I grew up in Sister Bay, graduated from Gibraltar High School. Still currently serving in the Marine Corps Reserves, I have always enjoyed and know the importance of staying healthy and active. I am excited to bring my passion to Door County.



We offer classes:
Mon-Fri7:30-8:30 am4:30-5:30 pm
Sat9:00-10:00 am
SunDay of Rest

To reserve a spot call Coach Julie Schaffer at

(608) 358-3074


Classes are held at
Door County Fitness Studio


The G.O.A.T


The Greatest Of All Time Membership
Unlimited monthly

Summertime Punch Cards

15 classes - $150

10 classes - $110

5 classes - $60

Drop In


T-shirts sold separately - $25

Accepted Cash Payments - Cash, Venmo, Zelle, PayPal
Credit Card - Processing Fee Applies
Punch cards expire on Sep 3th
First class free for locals new to CrossFit.
10% discount for active military and first responders.


T-shirts and tank tops available for sale at Sister Bay Crossfit

$25 each

T-shirts available in both Men's and Women's sizes

Contact Us

Coach Julie Schaffer
(608) 358-3074
[email protected]
Sister Bay CrossFit
10583 Country Walk Dr.
Sister Bay, WI 54234