Because You and Baby Deserve the Best Care.

Underground Fitness is staging group fitness programs for post-natal mothers to help them regain their core strength and pre-baby bodies. Held every Tuesday and Thursday (with access to regualr workouts on other days) these groups will help mothers develop their pelvic floors and strengthen/tone their abdomens, while also developing full body strength. This is all done in a controlled, careful and fun environment, with your baby! This will be a great bonding experience for you both, and you won’t have to worry about training at home (hoping you’re doing it right), training outside in the rain, or looking for a babysitter!

We will ask you to complete some questions before you arrive so we know how to handle your training most effectively. Not all births are the same, so not all post-natal training should be the same either. If you delivered by caesarian section or developed diastasis recti during pregnancy, we know how to strengthen you back up safely and effectively. 


Our current groups holds 12 mothers max, currently with 2 groups, one at 10.30am and then at 11.30am (Tuesday and Thursday). You can enter or exit this group at any stage, and there are 2 ways to take part. Firstly you can do drop in credits, where you pay as you can go. The second option is full membership which is a monthly payment that pre-books your times. It has no minimum contract length, and includes lots of info on regaining you pre-baby body at home, as well as access to our regular workouts too. Also, so you are not jumping blindly into the unknown, your FIRST WORKOUT IS FREE.  

Drop in Access Gets You...

Full Membership Gets You

Full Membership Just €145 a Month.

Or Drop in for €17.50 a workout.

First trial workout FREE

Our post-natal classes are held by our very own Sinead Holland, who is fully certitified as a post-natal exercise consultant, as well as having a degree in early childcare. She has racked up years of experience in helping mothers rebuild their shape, strength and confidence after difficult pregnancies. You are in good hands.


Our training is light, with the capacity for you to push a little harder (no pun intended) if you feel safe to do so. It’s all done in a caring and understanding environment, giving you an opportunity to bond with others mothers and learn a bit along the way.

We are handily located right in the heart of South County Dublin, within easy reach from Ballsbridge to Dalkey, Dun Laoghaire to Leopardstown. When you arrive, there is parking on site.

Below you can either directly book into a workout, or else request info (recommended if more interested in full membership).

How do I book in and pay?

You can use the widget at the bottom of this page to book into the workouts. You will directed off site to register. The first class is free, but sometimes you require a card to create an account. You will not be charged anything.

Can I join this at any time?

Yes, you can enter the group and any stage and start your journey comfortably. 

Ok, so am I bringing baby?  And is there access?

Yes, bring baby in your buggy or car-seat. There’s loads of space for whatever you bring, and there are just a handful of steps (3 steps) we can help you with.

How old can my baby be?

We recommend any pre-crawler age. The workout will be difficult if baby is able to crawl away or roll over super fast. For most it would be before 12 months of age.

Do I NEED to bring baby?

Not at all. If you have the opportunity to come by yourself take it, you deserve the break!

Am I fixed to a certain time?

No. As a full member you are registered into the same group time (10.30am etc) on Tuesday and Thursday. This avoids being booked out and guarantees your ability to attend, as drop ins are subject to availability. If there are 12 full members for 10.30am, then it is no bookable slot unless one of them moves their session. Full members can cancel and move their slot using our app if required (subject to vacant space). You also have access to any of our regular workout times (theres nearly 60 a week!).

When is it safe for me to take part?

If you had an uncomplicated pregnancy and vaginal delivery, it’s generally safe to begin exercising a few days after giving birth or as soon as you feel ready. If you had a C-section, extensive vaginal repair or a complicated birth, talk to your health care provider about when to start an exercise program.

How could I possible take part in one of your regular classes?

We don’t recommend it straight away, but you will quickly learn the tips and tricks required to exercise safely. We also provide coaching videos on what is safe to do, what not to do, and what to do instead.

What do I need to bring?

We recommend bringing everything you would bring for baby if you were out and about for the day. So a packed baby changing bag, and a changing mat is handy to change baby quickly.

What if I am booked in and baby is still fast asleep?

If baby falls asleep in the car on your way here, congratulations to you! You can exercise, and use a weight to replace baby, and introduce him/her back in if they were to wake up.

What if I need to breastfeed? Or do nappy-change?

There is a private area that can be used for breastfeeding, and the training area is held exclusively for our group at that time. There is a changing table then downstairs in the last shower room.

Will my picture be taken at the gym?

No, due to GDPR and their guidelines with children we will never take photos or videos of these workouts in session. That is why we have no photos here on the website or on social media of the groups.


Click the workout time you want below and you will be directed to register. Be sure to scroll down to “create an account” where it tells you to log in (it can be easy to miss).

You can book up to a week out. Please note our software requires card details for registration even when signing up to a free trial. Your details are secure and you will not be charged anything unless you book into a second workout.


Call us by clicking the little phone icon.