Alex has his priorities straight... Form and longevity. It was great chatting and goofing off a…read morebit with him before the class; Interesting hearing that some of his athletic influences also included the Westside Barbell / Riptoe crew. That's important less for the powerlifting aspect but for the fact that Riptoe was very smart in coming up with exercises used to heal his broken back and is therefore still lifting in his 70s... Class was fun, well explained, and the coaching was attentive. I come from the NorCal Crossfit gym in CA which has some of the most respected names in crossfit and I didn't feel like the coaching was lacking here at all during the class. Will be back!

Alex (the Owner) is the best trainer/coach I've encountered. I've been at this (cf) 6+'years and…read moretrained at numerous affiliates around the country and world. His 30 yrs in the fitness industry definitely show. I was there 2 weeks and would strongly encourage any crossfiter or regular gym rat to stop by and train here. All of his trainers are good but you'd be missing something if you didn't attend the classes Alex coaches. Whether it's about training, nutrition, or if you are a competitor, make sure you pick his brain as he is a world class trainer.

How is this the first review on this gym?…read more Boulder mountain is a great gym! I wasn't sure what to expect in a smaller town like this but I was impressed! Great trainers, great workout buddies, and great structure. The workout was awesome, the gym is very organized and I loved my workout!

From the owner: The Valley's Premier CrossFit Facility…read more Come see the difference experience makes at Boulder Mountain CrossFit. Our coaches have more experience than anyone else in the area, and that translates to better training and better results for you! We're also the largest facility in the area, with more high-end CrossFit equipment, classes and open gym times than any other gym in Hailey. That's just one reason you'll see people from all walks of life - from grandparents to students to elite athletes - training in our gym. But sticking with a fitness program really is about more than results, and we know that. You've got to ENJOY your workout if you want to stick with it! For that, we've got passionate, intelligent programming, an awesome community that loves to have a blast at the gym, and a feel-good vibe that hits you as soon you walk in the door. Come check us out and feel it for yourself! All our classes are designed to deliver two things - results and fun! We know you won't stick to a workout regimen that you don't love, so we work hard to make sure every class gives you the best hour of your day, all while giving you noticeable results in a safe, supportive environment. We offer: CrossFit Masters CrossFit Teen Strength and Conditioning Personal Training And our newest program - Ignition! A great place to "start your engine" if you are new to working out, or if you prefer a lower intensity version of the CrossFit training program. Think of it as CrossFit Lite.

Great way to get a good workout in. Pool was busy with kids but no biggie. Heard the classes are…read morereally good. I bought a punch pass that I can use next time I'm in town. Very nice staff.

My daily workouts were a highlight of my day while I was traveling here. I liked how the front desk…read morestaff were always friendly and recognized me. The locker rooms are a nice layout and with 4 showers, there is typically 1 available. The layout of the workout equipment made sense and it was good amount based on the number of people so it was also available. I requested wanting to do an hour on the stairmaster and the adjustment to make this possible was done within a day. I liked using the hot tub for recovery after my workout but when it was closed, you literally had to go right up to the pool area to know that; there could have been a sign by the front desk, a sign entering the locker room, etc. but there was just a sign on the door AFTER completely going through the locker room where realistically one had already changed.

My husband and I worked out in this gym for a week while staying in Sun Valley and were very…read moreimpressed. It had everything I needed (and more) to do my workouts I do with an online trainer. I wish our home gym was this well equipped. The owners and members are very friendly too.

Perfect gym to workout. No BS ....all you need and more in an unassuming atmosphere with reasonable…read morepricing and great options

Was in town for business and took advantage of coming here to workout and get some spa services…read more The Pilates instructor, I think her name is Carly, was absolutely terrible. She was rude, disrespectful, and unprofessional. I will never return because of her.

Been here twice from Boise. The facial treatments are underwhelming and shockingly expensive for…read morewhat you get. On top of that they charged us $100 extra after paying over $700 for our treatments because our daughter was with us and used the pool area while we were getting our treatments. We tried to get one for her but they were booked. The young gal at the front desk didn't need to be so rude as there could have been an attempt to ask for an exception this one time. It's sad that basic common sense has been depleted in today's world that even w customer service employee behaves in such a manner to a paying, returning customer. One hundred dollars today cost this place much more in the long run. Hire better. The guys at the pool bar by the way, were absolutely fantastic!

I'm staying in Sun Valley for two months and wanted a workout somewhat similar to what I do at…read morehome. So glad I found this place! I've been going 2 weeks now and I love the concept of small classes with high intensity format, cardio and weights. Each class is different. The talented instructors take their time to create a class with a very interesting and challenging format. They explain and demonstrate and offer modifications. Thank you!

I've noticed that Sun Valley lacks in boutique fitness studios and gyms like Synergy have a huge…read morewaitlist and don't sell weekly passes. I get my exercise in hiking and biking during the summer, but needed to find a way to get a good sweat now that I've retired from skiing (if you can call what I did skiing). I was excited to see they had a treadmill/circuit training type of class called the mill. I did the power mill class 4 times during my week in Sun Valley and loved it so much. All 3 instructors I took with (Sophie, Maggie and Josie) were challenging and energetic. It was a good combo of running and weight lifting - I hated it during the workout, but felt so good when I left. Sophie's class was probably the most challenging of the 3 and she was also super friendly and welcoming to a newbie like me. Her Sunday morning class was also the smallest with only 3 of us so spent a lot of time correcting our form as well. I think you can't go wrong with any of the classes here and if you love to run they have a run mill class that's all on the tread. Excited I found this amazing workout for my frequent trips to Sun Valley. It seems popular among the locals, but tourists should try it too. And the first class was only $15 on mind body!

Great place to work out, training, tennis, fitness classes, and a clean facility. Professional and…read morefriendly staff. Love it.

Front desk was super friendly. Club is super clean. Equipment is good quality. Met the owner who…read morehelped me find a good place in town to eat. Nicer in person than the pictures show. Def recommend. I own health clubs myself and their doing it right.