Underground Gym Newhaven

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Underground Gym Newhaven Underground Gym Newhaven is the town's premier facility for training. We offer a range of facilities,
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So you’ve heard the rumours and now you know it’s happening! Underground Gym has established itself as Brighton and Hove’s number one premier gym and is now opening a new site in Newhaven. We’ll be bringing you all the great equipment and classes that we are renowned for in Brighton but with some added extras… everything you could possibly want from a gym all under one roof. Classes include:

Combat
Calisthenics
Parkour
HIIT

We’ll have the best of the South coast’s physios on site plus a sauna to relax your well worked muscles. We’ve had a good few years to hone what we do in Brighton and you can tell from our member testimonials that we have got it right. We are ahead of the game when it comes to providing the best equipment but more than that we know that for our members an inspiring and inclusive atmosphere and an encouraging environment is what keeps them coming back and spurs them on to get the most out of their training. Underground Gym Newhaven is opening July 2017 and we have some amazing Early Bird offers https://www.underground-gym.com/newhaven. As with our Brighton gym, there is no contract tie in with our memberships. We’ll build the gym, together with our members we’ll create our fitness community, get in there quick and be a part of it from the start.

13/10/2026

Three months from now, you could still be thinking about making a change… or you could be glad you finally started. 👊

You don’t need to overhaul your life overnight. Start with the things you can repeat:

→ Get your training sessions in.
→ Build a routine that fits your week.
→ Keep showing up, even when progress feels slow.

October, November, December. Three months of small actions that can take you closer to where you want to be.

Make a start today. Your future self will thank you. 

💛🖤WHAT’S HAPPENING THIS OCTOBER AT UG NEWHAVEN?! 🖤💛October is looking BUSY, and we’ve got plenty to celebrate!💪🔥NIAMH - ...
12/10/2026

💛🖤WHAT’S HAPPENING THIS OCTOBER AT UG NEWHAVEN?! 🖤💛

October is looking BUSY, and we’ve got plenty to celebrate!💪🔥

NIAMH - A massive congratulations on placing 2nd in BOTH Bikini Open and Bikini Beginner at UK Ultimate Physiques!
What an achievement!👏
And a big happy birthday for the 10th!🎂🎉

🏃‍♂️15TH - PARIS TAKES ON HYROX!
Let’s gooo!💪
🏃‍♀️16TH - GRACE TAKES ON HYROX!
We’re cheering you on!

⭐️22ND - NEW TREADMILLS INCOMING⭐️

🎃🎧27TH -DJ SAMMY IS BACK! BRINGING THE HALLOWEEN VIBES TO UG with a live DJ set.👻🔊

Let’s go Newhaven 💪

07/10/2026

You shouldn’t need to look a certain way, lift a certain weight or know exactly what you’re doing to feel like you belong in a gym.

At Underground Newhaven, you’ll find people at all stages of their training - different ages, different goals, different experience levels - all sharing the same space and getting on with their own thing.

That’s what stood out to Louisa when she joined us. She was nervous about joining a gym, but found a community where she felt genuinely welcomed by the staff and members. 🤝

Whether you’re here for the weights, the boxing ring, a spin class or simply to get yourself moving, you’ll find plenty to get stuck into.

If you’ve been putting off joining because you’re worried you won’t fit in, come and see us. Your first session is free. 👊

06/10/2026

The routine might feel repetitive. The results won’t. 👊

Same training days. Same early starts. Same decision to show up when you could’ve stayed home.

That’s the part nobody sees - the ordinary days quietly adding up to something different.

Because a year of doing the same things that keep you stuck will look very different from a year of consistently moving forward.

You don’t need to change everything overnight.

Just keep showing up. 

Kinda chic to have standards. Kinda chic to raise them. 😉Because your gym should be somewhere you actually want to spend...
02/10/2026

Kinda chic to have standards. Kinda chic to raise them. 😉

Because your gym should be somewhere you actually want to spend your time, with good kit, a good atmosphere and people who know your name.

And if that happens to be Underground… well, that’s kinda chic too. 😜

29/09/2026

If your plans involve getting stronger, moving more and having a good time while you’re at it… we’ve got you covered. 👊

From Sunday to Saturday, there’s always something to get stuck into at Underground Newhaven.
Which class are you booking this week? 

23/09/2026

Okay… maybe not exactly what we meant by a leg warm-up. 😂

But if it gets you moving, we’ll allow it. 👀

Tag the mate whose warm-up would somehow turn into this. 👇

21/09/2026

Whether you’ve been thinking about getting back into training, trying something new or finally making a change you’ve been putting off, you won’t know what could come from it until you take that first step. 👊

Don’t let the fear of failing stop you from finding out what you’re capable of.

Ready to give it a go? Come train with us at Underground Newhaven. 💪

16/09/2026

When you see fitness as something that stays with you through different seasons of life, there’s less pressure to rush it. You can take your time, adjust when life gets busy, start again when you need to, and keep learning along the way.

Progress doesn’t have to be fast to be worth it. It just has to be something you keep coming back to. 🤝

So… what’s your usual gym time? 👀Are you an early-morning regular, a lunch-break lifter, straight-after-work kind of per...
14/09/2026

So… what’s your usual gym time? 👀

Are you an early-morning regular, a lunch-break lifter, straight-after-work kind of person, or a late-night gym-goer?

Drop your usual training time below, let’s see when everyone’s actually getting their sessions in!

Address

15 Avis Way
Newhaven
BN90DP

Opening Hours

Monday 5am - 10pm
Tuesday 5am - 10pm
Wednesday 5am - 10pm
Thursday 5am - 10pm
Friday 5am - 10pm
Saturday 6am - 8pm
Sunday 8am - 5pm

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