Kaldera
Starter Bundle
Kaldera Plunge 80 + Chill Core 300 + Wireless Floating Thermometer
£649.00£697.00Save £48
£649.00 (£697.00 value bought separately)
Kaldera Plunge 80
Chill Core 300
Wireless Floating Thermometer
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4.7/5 from verified customers
Ice baths & cold plunge chillers, built for real cold therapy
Find your perfect cold therapy device - precision ice baths, chillers and all the accessories you need to get the most out of cold water therapy.
Tracked delivery to the UK & EUResearch-backed
Not sure where to start? Find your setup in 2 minutes
Free tracked delivery over £100
Faulty or damaged? Replaced or refunded
Klarna available
4.7/5 from verified customers
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Kaldera
Performance Bundle
Kaldera Plunge 320 + Chill Core 500 + Wireless Thermometer
£899.00£937.00Save £38
£899.00 (£937.00 value bought separately)
Kaldera Plunge 320
Chill Core 500- Wireless Floating Thermometer
In the wild
The Kaldera Experience
Why Kaldera
The numbers behind the promise
4.7/5
Average rating from verified customers
11–15°C
The temperature band used across the recovery research we cite
£100
Free tracked delivery on orders over £100, across the UK and 20 euro-area countries
Explore the range
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Add-ons
Complete your kit
Free tracked delivery over £100.
Ice Roller
£14.00
Instant Cooling Towel
£19.00
Peanut Massage Ball
£22.00
Travel Foam Roller
£39.00
Reusable Knee Ice Pack
£49.00
Mini Massage Gun
£69.00
Ember Steam Sauna Pod
£249.00
Getting started
How it works
01
Fill
Set up your foldable tub indoors or out, and fill it with a hose or a few buckets.
02
Chill
Set your target on a Chill Core and let it hold the water cold - no ice runs, no guesswork.
03
Plunge
Two to five minutes, most days. Cover the tub between sessions to keep it cold and clean for tomorrow.
Every health claim on this site links to the peer-reviewed study behind it
The Science
Backed by research, not hype
Recovery
Cold water immersion after hard training can ease the muscle soreness and perceived fatigue that build up over the following days, helping you come back to your next session feeling fresher.
Bleakley et al. 2012, Cochrane Database of Systematic Reviews
Mood & energy
A cold plunge triggers a sharp rise in circulating noradrenaline and a jump in alertness. Many people describe the after-effect as a clean, sustained lift in mood and focus.
Šrámek et al. 2000, European Journal of Applied Physiology
Sleep & stress
Regular cold exposure is associated with a shift toward parasympathetic (“rest and digest”) activity and lower self-reported stress, which for many supports calmer evenings and better sleep.
Buijze et al. 2016, PLOS ONE
Temperature & duration
The recovery trials pooled in the largest meta-analysis clustered around 11–15°C for 11–15 minutes - and colder or longer wasn't reliably better within that range. You don't need ice-water extremes to match the studied protocols.
Machado et al. 2016, Sports Medicine
Fewer sick days
In a randomised trial of over 3,000 adults, ending a routine shower with 30–90 seconds of cold water was associated with a 29% reduction in self-reported sickness absence. The trial studied showers, not immersion - a distinction we keep honest.
Buijze et al. 2016, PLOS ONE
Cold shock & safety
The first 30–90 seconds of cold exposure trigger a documented cold shock response - a gasp reflex and a jump in heart rate and blood pressure. Easing in gradually, rather than starting at the coldest setting, is how tolerance is built safely.
Tipton et al. 2017, Experimental Physiology
Cold water immersion is not a medical treatment. Consult a professional if you have cardiovascular conditions.
Evidence-backed cold water therapy for the UK & EU.
Learn
Cold water therapy, explained
Before you buy
Common questions, answered straight
How much does delivery cost, and where do you ship?
Delivery is free on orders over £100, across the UK and 20 euro-area countries, and every order is tracked. Smaller orders carry a flat fee shown at checkout. Delivery times are on our shipping page.
Will I pay customs or import fees?
Depending on the item and the order value, import VAT or duty may be collected on delivery. Our shipping page explains exactly when that can apply.
What is the returns policy?
You can cancel within 14 days of delivery under UK/EU distance-selling law (return postage at your cost), and faulty or damaged items are replaced or refunded. Large items such as tubs, chillers and saunas can't be returned for a change of mind beyond that 14-day right.
Is there a warranty?
Chillers are covered by your consumer rights: if one arrives faulty or develops a fault, we arrange a repair, replacement or refund under the Consumer Rights Act.
What water temperature should I use?
The recovery studies pooled in the largest meta-analysis cluster around 11–15°C. Colder is not reliably better within the studied range, so get into that band and stay comfortable.
Do I need a chiller, or can I just add ice?
Ice is fine for occasional plunges, but a chiller holds a precise set temperature day after day - that consistency is what makes a daily routine sustainable.
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