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The Union, Fitness & Fun, Park Oaks

4.7 ★★★★★ 88 Google reviews · Hot yoga studio in San Antonio, Texas

Hot yoga studio

Friendly, knowledgeable, hot-yoga studio and gym offering a variety of fitness classes including CrossFit.

Plan your first class

Hours

Monday 5 am–8 pm
Tuesday 5 am–8 pm
Wednesday 5 am–8 pm
Thursday 5 am–8 pm
Friday 5 am–6 pm
Saturday 2–5 pm
Sunday 2–5 pm

Hours shift for holidays, workshops, and class schedules — worth a quick check before a special trip.

What's on offer

Amenities students name in their reviews of The Union, Fitness & Fun, Park Oaks — the fastest way to tell what to expect before you book your first class.

🚿 Showers

“Three locations around town make it super convenient and all locations have clean restrooms and shower facilities.”

Other studios with showers →

Amenities are mined from reviews and the studio's own info — they tell you what students have experienced, not a formal guarantee. If something is a dealbreaker (childcare hours, mat rental, showers), confirm it with the studio before you go.

What students say again and again

The things reviewers bring up again and again across 88 Google reviews — with their own words as proof.

🧑‍🏫 amazing instructors 3 mentions

“Instead of paying multiple memberships for different services/classes, it’s all at one place - and all the instructors and coaches are extremely knowledgeable and helpful.”

🤝 strong community vibe 9 mentions

“With a wonderful workout community, top notch coaches and teaching staff, and a variety of classes to keep you in your toes, this is the best place to workout!”

🗓️ good class variety 6 mentions

“With a wonderful workout community, top notch coaches and teaching staff, and a variety of classes to keep you in your toes, this is the best place to workout!”

🌟 transformative practice 3 mentions

“I HIGHLY recommend Union San Antonio for the BEST of CrossFit & Yoga.”

From the reviews

ABSOLUTELY LOVE Union!!!! I attend all Union facilities for the variety of classes. Each class offers something challenging!!! The staff are SUPERB!!! Each staff member brings love, humor, and gentle joy to ensure you receive the VERY BEST from each class you attend!!!

★★★★★ — Darlene, Feb 2022

This is by far the best gym you can find in San Antonio! For one membership you have everything you could want - CrossFit, HIIT, yoga (of all kinds), Pilates, barre, weight lifting, and more!

★★★★★ — Camille, Dec 2025

The instructors are knowledgeable and welcoming. They make sure to provide modifications and encouragement to beginners. As someone who is returning after a long absence, this is invaluable. I am confident that with their support I will be successful in establishing a regular practice again. Thank you!

★★★★★ — Kelly, Oct 2017

The Union is AWESOME! I love the sense of community and the variety of fitness and yoga classes offered. I've been a member for several years, and I keep going back because I'm addicted to how great I feel after taking a class there.

★★★★★ — N, Feb 2022

Excerpts from public Google reviews. Read all 88 reviews →

Your first hot yoga class at The Union, Fitness & Fun, Park Oaks

Nervous about your first hot class? Almost everyone is, and a good studio expects beginners to walk in the door. Here's what to know. What to expect: the room is heated, so it feels intense for the first few minutes — rest in child's pose any time you need to, no one will bat an eye. Hydrate: drink water through the day before class, not just as you arrive, and bring a bottle. What to bring: a mat and towel, water, and a change of clothes; wear something light you don't mind sweating through, and skip a heavy meal in the couple of hours beforehand. Arrive 10–15 minutes early to sign in and set up. It gets easier fast — most people say their third class feels completely different from their first.

Heat and intense exercise aren't right for everyone — if you're pregnant or have heart, blood-pressure, or other health concerns, check with a doctor before your first hot class.

Where to find The Union, Fitness & Fun, Park Oaks

16620 San Pedro Ave Ste 101, San Antonio, TX78232

Get directions Instagram

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Listing verified July 2026 from public business records and student reviews. Something out of date? Report a correction. Own this studio? Claim your listing — it's free.