What are the 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

Seung-ni Fit Club (Bay City)

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United States
Bay City, MI
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!

09/28/2026

🔥 THE BIGGER THE GROUP… THE BIGGER THE POT! 🔥

Survivor 2.0 is coming, and we’re looking for our next group of challengers ready to show up, put in the work, and take on SIX weeks of fitness, accountability, and a little friendly competition! 💪

Here’s the deal… the more people who sign up, the bigger the prize pot gets! 💰

And everyone who successfully completes the challenge gets to split the pot!

So grab your workout bestie, recruit your friends, and let’s see how big we can make this challenge!

📅 Challenge starts October 11th!

Ready to commit? Sign up here:

💪 Members: https://momence.com/m/916656⁠

🔥 Non-Members & Punch Card Members: https://momence.com/m/916694⁠

The countdown is ON, and we want YOU to be part of it!

Who’s IN?! Drop a 🔥 below and tag someone you’re bringing along!

09/24/2026

🚨 SURVIVOR 2.0 SPECIAL PRICING ALERT! 🚨

If you sign up between now and October 1st, you can lock in our special discounted pricing for Survivor 2.0!

💪 Non-members & Punch Card Members: $149.99 → $89.99

💪 Members: $49.99 → $29.99

🌟 GOLD MEMBERS: Your challenge entry is INCLUDED with your membership! That’s right — Survivor 2.0 is one of your Gold membership perks!

Not a Gold member yet? It’s not too late to sign up for Gold and enjoy this perk, too!

If you’ve been waiting for your sign to commit to six weeks of showing up for yourself, THIS IS IT! 🔥

📅 Challenge starts Sunday, October 11th!

And remember… the bigger the group, the bigger the pot! 💰 Grab a friend and let’s make this our biggest challenge yet!

📲 Sign up here:

Members: https://momence.com/m/916656⁠

Non-members & Punch Card Members: https://momence.com/m/916694⁠

Interested in upgrading to Gold? Reach out and we’ll help you get started! 🧡

09/23/2026

🚨 FRIDAY SCHEDULE CHANGE! 🚨

Friday morning Step is getting a switch-up! We’re swapping it for TRX Sculpt with Sara at 8:30 AM! 💪

Can’t make Sara’s Tuesday morning TRX class? Friday is your chance to catch it!

Get ready to strengthen, sculpt, and kick off your Friday feeling strong!

📲 Reserve your spot in Momence!

Who’s joining Sara on Friday? 🙌

09/22/2026

One of our instructors shared this on her page, and we couldn’t agree more. ❤️

For so many of us, the gym is about much more than the workout. It’s a place to clear your head after a long day, work through stress, celebrate the little wins, and leave feeling better than when you walked in.
And what makes it even better? The people beside you.

The familiar faces, the encouragement when you need it most, the laughs between sets, and the friendships that extend well beyond the gym walls.
We’re so grateful for our Seung-Ni fit family and the community of support we continue to build together. Whether you come for the workout, the mental reset, the friendships, or a little bit of everything, there’s a place for you here.

We’re stronger because we show up for ourselves AND for each other. 💪❤

09/21/2026

🔥 Did you know? Survivor 2.0 challengers get 18 sauna visits throughout the challenge! 🔥

That gives you plenty of chances to experience it for yourself and see why so many people love adding sauna time into their routine.

Whether you use it to unwind after class, loosen up, relax, or simply take a little time for yourself, those visits are a great way to explore the benefits firsthand.

💪 18 visits. 6 weeks. One more perk of taking on the challenge.

If you’ve been curious about the sauna, this is the perfect excuse to try it!

* Members: https://momence.com/m/916656
* Non-members / punch cards: https://momence.com/m/91669

09/19/2026

🍂 YOGA POP-UP TOMORROW! 🍂

Your Sunday reset is almost here. 🧘‍♀️✨

Join Sarah tomorrow at 5:00 PM for a relaxing Yoga Pop-Up designed to help you stretch, breathe, unwind, and head into the new week feeling refreshed.

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

Spots are limited, so if you’ve been thinking about joining us, grab yours today!

We can’t wait to see you tomorrow. 🧡

09/17/2026

🔥 SEUNG-NI SURVIVOR 2.0 RULES — ARE YOU READY? 🔥

The countdown is on! Our next 6-week challenge starts Sunday, October 11th, and this one is all about consistency, accountability, and pushing yourself a little further each week.

Here’s what it takes to survive:

* Attend 6 classes each week
* Hit 10,000 steps every day
* Complete the weekly bonus challenges
* Stay consistent for the full 6 weeks
* Those who make it to the end will split the prize pot 💰

This isn’t about perfection. It’s about commitment, building stronger habits, and doing it alongside a community that’s working toward the same goal.

Ready to commit? Sign up here:

Members:
https://momence.com/m/916656

Non-members / Punch Card Members:
https://momence.com/m/916694

🔥 Challenge starts October 11th
Reach out with any questions and let’s see who’s ready to take on Survivor 2.0!

09/15/2026

🍂 Yoga Pop-Up Reminder! 🍂

This weekend is your chance to slow down, stretch, breathe, and reset with Sarah. 🧘‍♀️✨

📅 Sunday, September 20th
⏰ 5:00 PM
💲 $10 to attend

Spots are limited, so don’t wait to grab yours!

📲 Sign up now in the Momence app and come enjoy a little fall reset with us.

Whether you’re a yoga regular or trying it for the first time, all levels are welcome. 🧡

Who’s joining us Sunday? 🍁

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!

For non-members/punchcards:
https://momence.com/m/916694

For members:
https://momence.com/m/916656

09/11/2026

Look like fun? You should join us!

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

🔥

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

Website

http://www.seungni.com/

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