Half a day for a spa treatment and a swim; a full day or overnight for the spa gardenHow long
Free for guests; membership or treatment booking otherwiseEntry
Adults for the spa; families for the poolBest for
Indoor pool & spa; outdoor thermal gardenIndoor / outdoor
Free on siteParking
The Spa at The Dunadry is a country-house leisure club and a small, calm thermal spa garden tucked into a former linen mill, with treatment rooms, a pool and riverside gardens to walk off the afternoon.
What you'll enjoy: spa treatments in the Vi Spa treatment rooms — massage, facials and body treatments — plus a heated indoor pool, sauna, steam room and gym in the leisure club. There's also a separate outdoor Spa Garden: three hot tubs, a wood-lined sauna, a cold plunge and a glass-house lounge.
Current closure — the pool is out: the Fitness Club swimming pool, hot tub, steam room and sauna are closed for refurbishment until 31 August 2026. The gym stays open, and treatments and the Spa Garden run as normal — but if you're coming for a swim, ring first and confirm it's reopened.
Book ahead: the venue advises pre-booking for the pool and thermal spaces and for any treatment, to avoid disappointment. The pool timetable also gives over to swimming lessons at times, so don't just turn up.
Who it's for — mind the split: the leisure club pool is family-friendly and children are welcome with an adult; the Spa Garden is a grown-ups' retreat, reserved for guests staying in the ten Garden Rooms. Confirm the age policy for treatments when you book.
Cost: leisure facilities are free for hotel guests. Non-residents join as members (individual from £49/month, family from £94/month) or book a treatment. Spa Garden access comes with a Garden Room stay. Gift vouchers are available.
When: the gym currently runs Mon–Thu 6:30am–9pm, Fri to 8pm, Sat 8am–8pm, Sun 8am–6pm. Confirm pool and spa hours on the day.
Plan your visit
What's actually here
There are really three ways to enjoy the Dunadry. First, the leisure club: a heated indoor pool, a spa pool, sauna, steam room and a gym, a few seconds' walk from reception — free for anyone staying, or open on membership to locals. Second, the Vi Spa treatment rooms, where you book in for a massage, a facial or a body treatment; there's also an independent Thai-massage therapist on site. Third, and the newest, the Spa Garden — an outdoor thermal retreat with three large hot tubs, a wood-lined sauna, a cold plunge pool and a heated glass-house lounge, reserved for guests in the ten Garden Rooms so it never feels crowded. Between treatments, the award-winning riverside gardens are yours to wander, and the resident peacocks tend to make themselves known.
Heated indoor pool, spa pool, sauna & steam roomVi Spa treatment rooms — massage, facials, body treatmentsSpa Garden: three hot tubs, sauna, cold plunge, glass-house loungeAward-winning riverside gardens with resident peacocksGym with free weights and classes; free parkingGift vouchers available; overnight spa-break packages
Before you set off:
The Fitness Club pool, hot tub, steam room and sauna are closed for refurbishment until 31 August 2026. The gym stays open throughout, and treatments and the Spa Garden are unaffected. If your day depends on a swim, phone ahead and confirm the pool has reopened.
Before you set off
What to bring
🩱Swimwear and a towelHandy for the pool and the thermal spaces — check what the venue provides when you book.
🥿Flip-flops or slidesEasy on and off for the pool deck, sauna and the outdoor hot tubs.
🧖A robe if you likeTreatment guests are given time to relax before and after — settle in and slow down.
🚶Comfy shoes for the gardensThe riverside paths are lovely between treatments, or after a swim.
Good to know
Everything before you go
Cost
Leisure facilities are free for hotel guests. Non-residents can join the Fitness Club: individual from £49/month, senior/student from £43, joint from £88, family (2 adults + 2 children aged 5–16) from £94. Spa treatments are booked and priced separately — call for current rates. Spa Garden access comes with a Garden Room stay. Gift vouchers available.
Opening / hours
During the pool refurbishment the gym runs Mon–Thu 6:30am–9pm, Fri 6:30am–8pm, Sat 8am–8pm, Sun 8am–6pm. Pool, spa and treatment hours vary — confirm on the day.
Current closure
The Fitness Club swimming pool, hot tub, steam room and sauna are closed for refurbishment until 31 August 2026. The gym stays open. Treatments and the Spa Garden are unaffected.
Best for ages
The leisure club pool is family-friendly — children welcome with an adult. The Spa Garden is an adults' retreat for guests in the Garden Rooms. Confirm the minimum age for treatments when you book.
What's here
Heated indoor pool, spa pool, sauna, steam room and gym; Vi Spa treatment rooms (massage, facials, body treatments) plus an independent Thai-massage therapist; and the outdoor Spa Garden — three hot tubs, wood-lined sauna, cold plunge pool and a glass-house lounge.
Booking
Pre-booking is advised for the pool, the thermal spaces and any treatment — the venue notes the pool timetable also gives over to swimming lessons at times. Book via the hotel or Dunadry Fitness direct.
Setting
A former linen mill on the banks of the Six Mile River, with award-winning riverside gardens and resident peacocks. Pleasant to walk between treatments.
Parking
Free on-site parking. The leisure club is a few seconds' walk from reception.
Address
The Dunadry Hotel & Gardens, 2 Islandreagh Drive, Dunadry, Co Antrim, BT41 2HA
Questions
Before you go
Is the pool open right now?
Not at the moment. The Fitness Club swimming pool, hot tub, steam room and sauna are closed for refurbishment until 31 August 2026. The gym stays open, and treatments and the Spa Garden are unaffected. If you're coming for a swim, phone ahead and confirm it has reopened.
Can I visit the spa without staying overnight?
Yes for treatments — you can book into the Vi Spa treatment rooms as a visitor. The leisure club (pool, sauna, gym) is free for hotel guests, and non-residents can use it on a Fitness Club membership. The outdoor Spa Garden, however, is reserved for guests staying in the ten Garden Rooms.
Can children use the pool?
Yes, the leisure club pool is family-friendly and children are welcome with an adult. The outdoor Spa Garden is an adults' retreat for Garden Room guests. Confirm the minimum age for spa treatments when you book.
Do I need to book?
Booking ahead is advised for the pool, the thermal spaces and any treatment. The pool timetable also gives over to swimming lessons at times, so it's worth checking rather than turning up on spec.
What does it cost?
Leisure facilities are free for hotel guests. Non-residents join as members: individual from £49/month, family from £94/month. Spa treatments are priced separately — call for current rates. Gift vouchers are available.
Getting there
The Dunadry Hotel & Gardens is at 2 Islandreagh Drive, Dunadry, Co Antrim, BT41 2HA — a few minutes off the A6 between Antrim and Templepatrick, and handy for Belfast International Airport. There's free parking on site, and the leisure club is a few seconds' walk from reception. Tap below for directions.
The Dunadry sits on the banks of the Six Mile River, and water has always been the point of the place. The buildings began life as a linen and paper mill, drawing on the river that runs through the grounds — the kind of industry that once threaded through this whole corner of Antrim. When the mill's working days ended, the site was reworked into a country hotel, keeping the low, long lines and the timber of the original buildings rather than sweeping them away.
That heritage is still what gives the spa its character. The treatment areas and thermal spaces sit among natural wood and arched windows, and the gardens outside — award-winning, and threaded with quiet riverside paths — are as much a part of a visit as the pool. Resident peacocks patrol the lawns, and the water that once turned the mill wheels now just runs gently past for the walking.
The newest chapter is the Spa Garden, an outdoor thermal retreat added in 2025 and reserved for guests in a small cluster of Garden Rooms. Three hot tubs, a wood-lined sauna, a cold plunge and a glass-house lounge sit out in the planting — a modern spa idea, but built to feel like it grew out of the same riverside setting the mill did two centuries before.