New York's first public floating sauna, coming to Saratoga Springs in September 2025

Meet our Sauna Spirit! Inspired by Nordic mythology, the sauna tonttu guide the transformation of body and soul.

A new wave of wellness arrives in Saratoga Springs, New York

Inspired by Norway’s stunning fjord saunas, combined with the rich heritage of healing waters in Saratoga Springs, Kos brings an authentic Nordic wellness experience to upstate New York - just 3 hours north of Manhattan.

Book your hot spot during Opening Week!

Between September 22-28, Kos will open our doors to NY Capital Region businesses and organizations with free 90-minute group sessions for 12-15 people. Complete the form, and we will get in touch to reserve your spot!

Reserve my spot

Revitalize your senses at our floating sauna oasis

All experiences include access to the sauna, lake plunge, roof terrace, and drinking water - straight from Saratoga’s treasured mineral springs. Please bring two towels (one for sitting, one for drying off), flip-flops, and a refillable water bottle. If you forget your towel, no worries - we got you! They will be available for sale.

Communal sessions

90-minute sauna sessions, shared by up to 15 people. Come solo, bring a friend, or make new ones!
Private group rentals

Gather fifteen of your nearest and dearest for an exhilarating experience you'll never forget.
Team-building and custom events

Curate the perfect team-building session or event, perhaps followed by a meal at Lago by Druthers.
Annual memberships

Personal and organizational members receive 33% off communal sessions and private rentals.

Come for the health benefits. Come back for the fun!

What are the benefits of regular sauna use?

Humans have boosted physical and mental health with cycles of heat, revitalization, and rest for centuries. Benefits include reduced blood pressure, heart disease, risk of stroke, Alzheimer’s, respiratory disease, arthritis, headache, and flu. Recent studies show that brain is more focused and efficient post-sauna, enhancing focus and concentration. It’s also flushed with β-endorphins, giving your day a euphoric boost!

For whatever reason your visit, we look forward to welcoming you into the warmth at Kos!

What is Kos?

“Kos” (pronounced “cozy” without the y) in Norwegian means warm and simple pleasures, often shared with others. After living in Oslo for seven years, our Creator Kate got hooked on the floating sauna and knew she must bring it home to the US for others to enjoy.

We are a year-round, community-driven public sauna business offering communal sessions, private rentals, annual memberships, classes and rituals, team-building, and custom events in our 15-person floating sauna and roof terrace on Saratoga Lake, NY.

Sources: Mayo Clinic, 2018; PLOS One, 2023