
Ice Baths
The essential 80 × 75cm foldable tub at our lowest price - just the tub, no lid or accessories
Every health claim on this site links to the peer-reviewed study behind it
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In stock
£69
Our lowest-priced ice bath
80 × 75cm
Round, foldable sit-in tub
Why it works
The Kaldera Plunge 80 is the essential tub: a round, foldable cold plunge tub measuring 80 × 75cm according to the supplier, at our lowest price. It's just the tub - no lid or accessories - so you only pay for what you need to start plunging. It's a sit-in tub rather than a compact one, so check the size against your space before you order.
Want everything in one box instead? The Plunge 320 comes with an all-weather lid, triple-layer insulated fabric, an inflatable headrest ring, a seat cushion and a hand pump.
Fill it with cold water and ice for occasional plunges, or pair it with a chiller for a set temperature.
Specifications

What to expect
We email you a tracking number as soon as your order ships.
Tracked delivery. Orders under £100 carry a flat £4.95 delivery fee, shown at checkout before you pay; delivery times are on our shipping page.
Unfold, fill with cold water and ice, and plunge.
The research clusters around 11–15°C. Start with short seated dips and build up gradually.
Common questions
80 × 75cm according to the supplier - a round tub you sit in. It isn't a compact or travel tub, so check the size against your space before you order.
Tracked delivery; orders under £100 have a flat £4.95 (€5.95) delivery fee, shown at checkout before you pay. Delivery times are on our shipping page, and you'll get a tracking number by email as soon as it ships.
No - the Plunge 80 is the essential tub on its own, which is how it stays at our lowest price. (The supplier's photo shows a lid, but its listing doesn't confirm one, so we don't promise it.) If you want a lid, the Plunge 320 includes an all-weather lid plus a headrest ring, seat cushion and hand pump.
Ice works fine for occasional plunges and is the cheapest way to start. For a set temperature, the Starter Bundle pairs it with the Chill Core 300, which its supplier rates for up to 300 litres and about 15°C - so fill the tub below 300 litres.
Our supplier doesn't accept change-of-mind returns on this tub, so we don't offer returns beyond your legal rights: you can cancel within 14 days of delivery under UK/EU distance-selling law, with return postage at your cost. If it arrives faulty or damaged, we'll replace or refund it.
Complete the setup