Seung-ni Fit Club (Bay City)

Seung-ni Fit Club (Bay City) High-energy group fitness for all levels! Show up, work hard, and have fun getting stronger together 💪
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From body sculpt and step to TRX, kickboxing, and barre, our classes build strength, endurance, and confidence in a supportive, motivating community. Over the past 12 years, Seung-ni Fit Club of Bay City has transformed thousands of lives. Whether you are looking to dip your toes in the water of health and fitness or a hardcore enthusiast - we have a program for you!

🔥 SURVIVOR 2.0 PRICING IS HERE! 🔥We’re getting closer to kickoff, and we want to make sure everyone knows how to join in...
09/13/2026

🔥 SURVIVOR 2.0 PRICING IS HERE! 🔥

We’re getting closer to kickoff, and we want to make sure everyone knows how to join in on the next Seung-Ni Survivor 2.0 Body Challenge.

Challenge Pricing:
💥 Non-Members & Punch Card Members: $149.99
🥉 Bronze Members: $49.99
🥈 Silver Members: $49.99
🥇 Gold Members: FREE

That’s right — Gold Membership includes the full challenge at no additional cost! 🎉

We wanted this to be an added member appreciation perk for those on our Gold plan. If you’ve been thinking about upgrading, this is one more reason to check out Gold and everything that comes with it.

Six weeks of accountability, movement, community, friendly competition, and plenty of fun along the way. 💪

Challenge starts October 11th.

Want in? Reach out or sign up in Momence, and if you’re curious about Gold Membership, ask us about upgrading before the challenge begins!

09/11/2026

Look like fun? You should join us!

Stepping right into the weekend… every Friday @ 8:30am!

🔥

🍂 Fall in Love with Yoga 🍂Slow down, stretch it out, and give yourself a little time to reset this fall. 🧘‍♀️✨Join Sarah...
09/11/2026

🍂 Fall in Love with Yoga 🍂

Slow down, stretch it out, and give yourself a little time to reset this fall. 🧘‍♀️✨

Join Sarah for a special Yoga Pop-Up on Sunday, September 20th at 5:00 PM.

Whether yoga is already part of your routine or you’ve been waiting for the right time to try it, this is your sign. Come breathe, move, and unwind with us.

💲 $10 to attend
📲 Sign up in the Momence app
🍁 All levels welcome

A calmer mind, a stronger body, and a little fall reset sounds pretty good to us. 🧡

Who’s joining Sarah? Drop a 🧘‍♀️ below!

🔥 NEXT BODY CHALLENGE IS COMING… 🔥You asked. We listened. And it’s almost time to find out if you have what it takes to ...
09/09/2026

🔥 NEXT BODY CHALLENGE IS COMING… 🔥

You asked. We listened. And it’s almost time to find out if you have what it takes to SURVIVE. 👀💪

Seung-Ni Survivor 2.0 kicks off October 11th!

Six weeks of movement, accountability, community, a little friendly competition…and of course, a few surprises along the way. 😏

Whether you crushed our last challenge or this will be your first one, get ready to show up, push yourself, and have some fun with your Seung-Ni crew.

🔥 October 11th. Save the date.
Full details, rules & sign-up info coming soon!

Who’s ready for SURVIVOR 2.0?! Drop a 🔥 below if you’re in!

09/08/2026

🍂 TIME TO GET BACK TO WORK, TUESDAY! 💪

We hope everyone enjoyed the long holiday weekend… but the question is: are you back at it today? 👀

Here’s your Tuesday lineup:

5:15 AM — Body Sculpt with Carla
8:30 AM — TRX Sculpt with Sara
4:20 PM — Barre Sculpt with Stacy
5:30 PM — Step with Val

Four chances to move, reset, and get back into your routine. Pick one… or make it a double. 😉

📲 Grab your spot in Momence and come fall back into fitness with us!

And while we have your attention… 👀
Tomorrow we’re dropping some exciting news that MANY of you have been asking for.

Any guesses? 😏🔥

🇺🇸 Happy Labor Day Weekend, Fit Family! 🇺🇸We hope everyone enjoys a little extra time to relax, recharge, and spend time...
09/05/2026

🇺🇸 Happy Labor Day Weekend, Fit Family! 🇺🇸

We hope everyone enjoys a little extra time to relax, recharge, and spend time with family and friends. ❤️💙

Just a reminder that there are no weekend classes and no classes on Monday for the holiday.

Enjoy the long weekend, stay safe, and we’ll be ready to get back at it with you on Tuesday! 💪

Happy Labor Day from your Seung-Ni Fit Club Bay City family!

🇺🇸 Labor Day Weekend Schedule 🇺🇸We’re kicking off the holiday weekend with our Friday morning classes as scheduled, then...
09/03/2026

🇺🇸 Labor Day Weekend Schedule 🇺🇸

We’re kicking off the holiday weekend with our Friday morning classes as scheduled, then giving everyone a little extra time to enjoy the long weekend! ☀️

Friday AM: Classes are ON 💪
Friday PM: No classes
Saturday + Sunday: No classes
Monday: No classes
Tuesday, it’s back to work! 💪🔥

Enjoy the holiday weekend, recharge, spend time with family and friends, and we’ll be ready to get back at it with you after the break!

Have a safe and happy Labor Day weekend from your Seung-Ni Fit Club Bay City family! ❤️💙

🍂 NEW TO THE FALL SCHEDULE! 🍂By popular demand, TRX is back on Thursday evenings — and Bailey is taking the lead! 💪Join ...
09/02/2026

🍂 NEW TO THE FALL SCHEDULE! 🍂

By popular demand, TRX is back on Thursday evenings — and Bailey is taking the lead! 💪

Join us Thursdays at 5:30 PM for a full-body workout that challenges your strength, core, balance, and stability. TRX is easy to modify, so whether you’re brand new or already love it, you can make the workout work for you.

📲 Sign up in Momence
💙 Members & non-members welcome
💲 Drop-ins are always just $10

New season, new routine… come fall into fitness with us! 🍁

Who are we seeing Thursday at 5:30? 👇

Drop-ins are always just $10… and apparently, you never know what they might lead to at Seung-Ni. 😉🧡Maybe you find your ...
09/02/2026

Drop-ins are always just $10… and apparently, you never know what they might lead to at Seung-Ni. 😉🧡

Maybe you find your new favorite class.
Maybe you find an instructor who keeps you coming back.
Maybe you reconnect with friends, make some new ones, or simply carve out an hour that’s just for you.

Whatever brings you through the door, sometimes all it takes is showing up once. 💪

Come try a class, find your people, and see where it takes you.

$10 drop-ins • Members & non-members welcome
We’d love to have you! ❤️

Address

4420 Wilder Road
Bay City, MI
48706

Opening Hours

Monday 5:15am - 7:40pm
Tuesday 5:15am - 7:40pm
Wednesday 5:15am - 7:40pm
Thursday 5:15am - 7:40pm
Friday 5:15am - 6pm
Saturday 8am - 10:15am
Sunday 9:15am - 10:15am

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