Day pass
One visit

54.9296° N, 1.3832° W
Strength Built by the Sea
An independent gym in Fulwell, Sunderland. New owners since June 2025, new kit, a boxing room and a recovery room.
No complicated memberships.
No hidden extras.
Just simple options,
depending on how you want to train.
Tried-and-trusted equipment alongside brand-new kit.
New this year



Our new boxing room is open. Bookings only, at no extra cost for members and anyone paying in the gym.
Book by message

The Recovery Pass: £50 a month for gym membership plus unlimited use of the recovery room. T&Cs apply.
Ask about the Recovery Pass
No contracts. No hidden fees. Ask us for current prices.
One visit
Seven days
No contract
One visit
Ask us
Gym + unlimited recovery room

Marine House is home to Ace Performers and McCabe Aesthetics, who run coaching and group courses at the gym.
New owners took over Marine House on 2 June 2025 and reinvested everything back into the gym: new kit, new branding, a boxing room and a recovery room.

Marine House tees
£20
Sizes S–XXL
“The new and revamped gym is awesome. With a combination of tried and trusted equipment along with brand new kit along with cool new branding, decor and recovery room facilities, this has to be one of the better gyms I’ve been in for some time and I’ve been to gyms all over the UK and internationally too. Great facilities Great staff Great aesthetics All the qualities that make gyms great. KC”
“all the machines and weights you'll ever need. Staff friendly and welcoming. Its full of like minded people who just want to work out in a friendly environment. Would really recommend this gym 💯”
“This Gym has been a Favourite of mine. I was a World Class Bodybuilding Champion. Competing 4 times in the Nabba Mr Universe Winning sixth place in the Tall Class. Also competing in the Ifbb World Championships in Geneva. This Gym is Well Equipped plus with A Great Atmosphere.”
“Made to feel welcome from the moment I stepped into the gym. Staff are friendly and always there to help, its nice to know that there is support available. The gym is clean and tidy. It has all the old school machines and all the equipment needed. I highly recommend this gym.”
“Excellent gym. Clean and well-maintained, great staff, never too busy so you can crack on with your training. Huge choice of equipment for all fitness goals!”
54.9296° N, 1.3832° W
No. No contracts and no hidden fees.
Yes. Call 0191 548 0134 or message us on Instagram for current prices.
£50 a month for gym membership plus unlimited use of the recovery room. T&Cs apply.
It's booking only, at no extra cost for members and anyone paying in the gym. Message us to book.
Monday to Friday 5:30am to 9pm, Saturday 7am to 4pm, Sunday 7am to 2pm.