Kaiya is a private Japanese inspired thermal spa where every booking includes exclusive use of the entire space. Experience sauna, steam, hot tub, cold plunge, an experience shower and warm relaxation beds. no interruptions. no shared facilities. the spa is yours.
luxury private spa
66 Avenue Road | Bexleyheath | DA7 4EG
cold plunge
sauna
steam
experience shower
2 to 5 guests
2 hour sessions
private use
tea experience
about kaiya spa
Most spas ask you to share the experience. Kaiya was created so you never have to.
Every booking includes exclusive use of the entire spa, reserved for you and your guests. There are no waiting for facilities, and no interruptions. Just two hours in your own private thermal space, designed around heat, cold, water and rest.
Inspired by the intentional simplicity of Japanese design, Kaiya brings together a sauna, steam room, hot tub, cold plunge, experience shower and warm relaxation beds in one carefully considered environment.
Choose from three private rituals, each building on the last with Japanese-inspired additions, from matcha, sencha, fruits and seasonal accompaniments to our most complete experience, Zen.
We also feature additions allow you to make the experience your own, whether you're celebrating, marking an occasion or simply spending uninterrupted time together
Romantic – Rose petals, candlelight and handcrafted chocolate truffles.
Celebration – Cake, balloons and candles for birthdays, anniversaries and special occasions.
Every visit is personal. Every ritual is uniquely yours.
the beginning. £240 for 2 guests. use the spa and our thermal facilities for 2 hours, uninterrupted and in complete privacy.
our most popular. £270 for 2 guests. everything in shizuku, with the addition of a ceremonial matcha or secha tea experience.
kaiya gatherings
this is placeholder text
renowned thermal facilities
what makes us different? our hospitality. we are personally there to welcome you, individualise your experience, guide you on what to do, then remain away whilst your session starts. always ready to help.
kaiya shizuku 雫
2 - 5 guests
2 hours
complete privacy
the beginning | shizuku means droplet, for this single drop signifies the gentle start to your kaiya experience.
Shizuku is the purest expression of Kaiya, bringing together heat, cold, water and rest in complete privacy. with exclusive access to the sauna, steam room, hot tub, cold plunge, experience shower and warm relaxation beds, Shizuku is unhurried and uniterrupted relaxation.
A single droplet is often the beginning of something larger. One drop becomes a ripple. One small moment can change the rhythm of the day. Shizuku doesn't promise transformation. It simply marks the beginning.
£240 for two guests
book nowkaiya onsen 温泉
2 - 5 guests
2 hours
complete privacy
our most popular | onsen means hot spring, a place to bath, soak, pause and quieten
Onsen extends the Kaiya ritual beyond the thermal experience. After moving through heat, cold, water and rest, complete your visit with premium ceremonial matcha or sencha, either delicately prepared for you or enjoyed as a self-guided tea ritual
The warmth of the hot spring is only the beginning. As the water gives way to tea, the ritual continues in a different way. Onsen reminds us that warmth can be felt as much in a shared moment as it can in the water itself.
£270 for two guests
book nowkaiya zen
2 - 5 guests
2 hours
complete privacy
the complete experience | Zen is the moment when doing gives way to simply being
Zen is the most complete expression of the Kaiya ritual. Alongside exclusive use of the sauna, steam room, hot tub, cold plunge, experience shower and warm relaxation beds, enjoy A carefully prepared seasonal fruit platter, a bottle of prosecco or non alcoholic alternative, and the gentle glow of an aromatherapy candle bring the ritual to its natural conclusion.
Completion is found not by adding more, but by appreciating what is already present. Zen is a quiet reminder that the simplest rituals often leave the deepest impression.
£300 for two guests
book nowmemberships
shūkan: make kaiya spa your routine
return once again
the heat is familiar
stillness finds it home
kaiya residence
join our exclusive members club and become a kaiya resident.
use the spa during off peaks hours for 45 minute time slots.
whilst the world blurs around you, find clarity inside our private spa.
enlightenment await.
return
Type your paragraph here
restore
Type your paragraph here
reserve
Type your paragraph here
residence
Type your paragraph here
the door closes. the day leaves. enlightenment begins.
heat. water. stillness. private recovery awaits.
yoin: how kaiya made you feel
i saw the autumn leaf.
it fell from a tree, gently.
lost among the rest.
- Rated 4.9/5
A truly calming experience. I left feeling lighter, grounded, and deeply refreshed.
Aulia,
Wellness Session
connection
en (縁) is the invisible thread that brings people, places, opportunities, and moments together. our new beginnings start here:
michibiki: show the way with guided answers
the river bends west.
heavy stone breaks the current's pull.
the water find's way.
Kaiya Spa is a private thermal spa in Bexleyheath where the space is reserved exclusively for you. Rather than sharing facilities with other guests, your booking gives you private access to the spa environment and its thermal experiences.
Kaiya is designed as an exclusive use private spa. During your booking, the spa is reserved for you and your guest only, allowing you to move through the experience in complete privacy.
Kaiya’s private spa experiences include access to the sauna, steam room, hot tub, cold plunge, experience shower, and warm relaxation beds. Each ritual includes private use of the space, with selected experiences also including refreshments and additional touches.
Yes. Each one of our rituals is designed for private use for a minimum of two people and can be enjoyed as a shared experience for up to five guests for an additional £80 per person, depending on the ritual you choose.
Kaiya Spa is located at 66 Avenue, Bexleyheath, DA7 4EG, with direct rail connections from central London. It offers a quieter setting while remaining easy to reach from the city.
Shizuku offers a simple introduction to Kaiya, Onsen enriches the experience with refreshments, and Zen is our most complete ritual, featuring candles, refreshments and carefully considered finishing touches. If you're unsure, choose the experience that best reflects the occasion and the way you'd like to unwind.