
Sandycove Store & Yard
Dún Laoghaire, Co. Dublin
Wood-firedCold plungeIce baths

Helios – Dún Laoghaire Floating Sauna
Dún Laoghaire, Co. Dublin
Run this sauna? Send us photosBy the sea in Co. Dublin
Dún Laoghaire, Co. Dublin
Helios's floating sauna sits in the Coal Harbour at Dún Laoghaire, billed as the first floating sauna in Ireland. You sit in the heat on the water itself, with Dublin Bay around you, and cool off with a seawater plunge.
Sessions are 45 minutes with 12 seats, open every day from 8am to 10pm. When we checked, off-peak weekday sessions were €19.95 and peak sessions €24.95. There's a silent session on Tuesday nights and a ladies-only session on Wednesday nights.
When we checked in October 2026, sessions cost off-peak, weekdays 8am to 4pm (45 minutes) for €19.95, peak, weekday evenings and weekends (45 minutes) for €24.95. Prices can change, so confirm on their booking page.
As of October 2026: Every day 8am to 10pm. Check their booking page before you travel.
Yes. Helios – Dún Laoghaire Floating Sauna has cold plunge pools beside the sauna, so you can go straight from the heat into the cold.
Coal Harbour, Dún Laoghaire, Co. Dublin, in County Dublin.

Dún Laoghaire, Co. Dublin
Wood-firedCold plungeIce baths

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Sandycove, Co. Dublin
Wood-firedCold plungeGroup bookings