• Day Spa Experiences

    THE ULTIMATE RELAXATION BY THE SEA

    BOOK NOW
  • Day Spa Experiences

    THE ULTIMATE RELAXATION BY THE SEA

    BOOK NOW

Spa Days

OPEN NOW

Perched on the Ayrshire coast, Si! Spa at The Waterside Hotel offers a collection of luxury spa day experiences designed to help you relax, recharge and reconnect beside the sea.

Every spa day includes access to our one-hour Thermal Experience, featuring a sauna, steam room, experience showers and calming relaxation areas. The journey continues outdoors, where you can soak in the hydro pool, refresh under the outdoor experience showers, and unwind beside the sheltered fire pits while taking in breathtaking views across the Firth of Clyde and the Isle of Arran.

Enhance your experience with a choice of indulgent treatments using award-winning ESPA and ishga products, carefully selected for their natural ingredients and restorative benefits. Many of our spa day packages also include delicious dining options, from delicious poke bowls to afternoon tea.

Whether you’re planning a catch-up with friends, celebrating a special occasion, or simply taking time for yourself, Si! Spa at The Waterside provides the perfect coastal escape for relaxation, wellness and wellbeing.

ISHGA | ESPA

ishga is derived from the Gaelic word for water. An innovative range harnesses the anti-ageing properties of the finest hand-picked seaweed from the Scottish Hebrides to create an organic skincare range that can revitalise, repair and moisturise the skin.

Loved by customers all around the world, ESPA’s formulations contain unique combinations of plant extracts, marine actives and essential oils to create the most effective, natural products which work in harmony for healthy skin.

Restore at Si! Spa

From £130 per person (50 minute treatment)

~ 1 hour thermal heat and water experience prior to treatment including sauna, steam room,  and outdoor spa deck with hydro pool, experience showers and fire pit ~

~ Choose two of the following 25 minute ishga boutique therapies: Back neck & shoulder massage | Luxurious foot treatment | Luxurious hand treatment | Therapeutic scalp ritual | Boutique facial ~

~ Poke Bowl at Si! Spa + Refreshing signature fruit smoothie

~ Use of spa lounge and relaxation areas ~

TIME FOR TEA

From £215 per person (1 hour 50 minute treatment)

~ 1 hour thermal heat and water experience prior to treatment including sauna, steam room,  and outdoor spa deck with hydro pool, experience showers and fire pit ~
~ Welcome foot ritual ~
~ Uplifting full body brush & polish ~
~ Balancing full body aromatherapy massage ~
~ Comforting face and scalp massage ~
~ Si! Spa Afternoon Tea ~
~ Use of spa lounge and relaxation areas ~

UNWIND AT SI! SPA

From £170 per person (1 hour 20 minute treatment)

~ 1 hour thermal heat and water experience prior to treatment including sauna, steam room,  and outdoor spa deck with hydro pool, experience showers and fire pit ~
~ Welcome foot ritual ~
~ Relaxation back, neck and shoulder massage ~
~ Inner beauty facial ~
~ Si! Spa Afternoon Tea ~
~ Use of spa lounge and relaxation areas ~

HARMONY AT SI! SPA

From £130 per person (50 minute treatment)

~ 1 hour thermal heat and water experience prior to treatment including sauna, steam room,  and outdoor spa deck with hydro pool, experience showers and fire pit ~
~ Deep cleansing back exfoliation and mask ~
~ Back, neck and shoulder massage ~
~ Back of the legs massage ~
~ Si! Spa Afternoon Tea ~
~ Use of spa lounge and relaxation areas ~

Si! Spa Thermal Experience

From £45 per person

Our Thermal Experience includes the use of plush robes and towels, along with full access to Si! Spa’s facilities. Enjoy a relaxing two-hour Thermal Experience featuring a sauna, steam room, experience showers and a tranquil relaxation space.

With a strong connection to the outdoors, guests can unwind while taking in sweeping views across the Firth of Clyde from the outdoor hydro pool, outdoor experience showers and sheltered fire-pit area — offering a peaceful escape from everyday life.

Enhance your visit by adding breakfast, afternoon tea or a light bite in our Si! Spa Lounge, or simply sit back and enjoy a cocktail from the bar.

Available Monday to Thursday from £45pp, and Friday to Sunday from £55pp.

RISE & SHINE

From £130 per person (55 minute treatment)
Available 9am to 12pm

~ 1 hour thermal heat and water experience prior to treatment including sauna, steam room, and outdoor spa deck with hydro pool, experience showers and fire pit ~
~ 55 minute treatment including: Awakening foot ritual, Invigorating back, neck and shoulder massage with exfoliation, foot and scalp massage ~
~ Si! Spa breakfast ~
~ Use of spa lounge and relaxation areas ~

LET’S GET MUDDY

From £60 per person

~ 1 hour thermal heat and water experience prior to treatment including sauna, steam room, and outdoor spa deck with hydro pool, experience showers and fire pit ~
~ Rasul experience ~
~ Poke Bowl at Si! Spa  ~
~ Use of spa lounge and relaxation areas ~

Our Rasul Experience is a self treatment with space for up to 4 guests so you can enjoy this experience with friends. It encompasses the use of our private spa room to firstly exfoliate and purify your skin with our ishga Salt and Oil Exfoliation followed by a soothing clay application. Relax in the tropical steam room as the natural ingredients purify the body before a warm shower to rinse and leave your skin feeling refreshed and rejuvenated.

MATERNAL MOMENTS

From £165 per person (1 hour 25 minute treatment)
Suitable for during pregnancy from 12 weeks

~ Use of Si! Spa Relaxation Lounge ~
~ Welcome foot ritual ~
~ Nurturing full body pregnancy massage ~
~ Boutique facial ~
~ Si! Spa Afternoon Tea ~

WORTH NOTING

Thermal experience access is complimentary, prior to treatment, with all treatments of 55 minutes or longer.

To secure your booking we require a £20 per person non-refundable deposit, voucher code or full payment. Bookings can be rescheduled within 48 hours, cancellation, no show or reschedule less than 48 hours, incurs a full service charge, lost deposit or full voucher redemption. Treatment courses are non-refundable and non-transferable.

Over 16’s only permitted in the spa.

Si! SPA ATTIRE

For your comfort at Si! Spa, robes and towels will be provided for all day spa guests and treatments (with a minimum 55-minute duration). Please be advised, use of heat and water experiences will require appropriate swimwear. SimpsInns endeavour to work towards a greener future, and as part of our commitment to reducing wastage, we no longer include slippers in our spa packages. We kindly ask all guests to please bring suitable footwear for the spa, for example, flip flops which are ideal when using the thermal areas where the floor can be wet. Thank you for helping us to be environmentally responsible. Flip flops are available to purchase for £3.50 from spa reception.

Spa Enquiry

If you have any spa enquiries, please contact us and a member of our team will get back to you as soon as possible.

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