On the Slatebeck · est. 1926

Spring water, hot stone,and a cold that wakes you.

Marrow Springs is a working bathhouse on the river Slatebeck: a 1926 stone pool hall, steam rooms fed by the house spring, and the coldest plunge in the county. Come for the heat, stay for the shiver, leave quieter than you arrived.

Plan a visit Meet the pools What is in the water

House spring: 41 °C at source
Cold plunge: 6 °C, always
Pool hall: 1926, dressed stone
Sessions: Dawn to late

The rooms

Five ways to soak

38 m · 33 °C

The Meridian Pool

The long spring-fed swimming pool under the original arched ceiling. Lane ropes in, chatter out.

Swim the Meridian →

39 °C

The Cascade Bath

Hot stone pool where the spring water falls three short drops before settling. Sit where it lands.

Take the cascade →

6 °C

The Cold Plunge

Plunges at dawn from the west door, and a laugh you will hear from the deck. Thirty seconds is a success.

Brave the plunge →

45 °C steam

The Mosaic Room

The steam hall under ten thousand hand-set tiles. Sit low for gentle heat, climb the benches for the full fog.

Enter the fog →

No talking

The Resting Hall

Blankets, low lamps, a slow clock. The room where every session actually ends.

Rest a while →

The water

One spring, five rooms

Everything in the house is fed by the same spring, called the Marrow, which rises in the hillside behind the drying yard and arrives in the pool hall at 41 °C. We cool it, we let it breathe, we never chemically sweeten it.

	The Marrow spring	Town mains, for comparison
Temperature at source	41 °C	11 °C
Total dissolved solids	1,340 mg/L	280 mg/L
Calcium	214 mg/L	55 mg/L
Magnesium	61 mg/L	12 mg/L
Sulphate	402 mg/L	31 mg/L
Iron	0.4 mg/L	0.02 mg/L

Read the full water story →

Why it smells faintly of struck match

The spring carries sulphur, which is the honest smell of a real thermal water. Bathing suits survive it; silver jewellery does not, so leave the good ring in the locker. The house laundry rinses every robe in spring water too, which is why the towels smell like the pool hall.

Why the tiles are that green

Verdigris-green glaze was chosen in the 1930 refit because it hides the mineral bloom the spring leaves at the waterline. The bloom still wins eventually. Every third Thursday the pool deck hand-scrubs the tide line and the hall smells of barley soap for a day.

{section_kicker('Rituals', 'Four house rituals, ninety minutes or fewer')}

95 min

The Full Marrow

Heat, plunge, steam, rest, in the order the house has kept since 1934. The default answer to a first visit.

60 min

Birch & Salt

A brisk birch-whisk back treatment followed by coarse salt liniment. Loud, brief, and famously cheerful.

75 min

Stone Warming

Warmed river stones set along the spine while you steam. The quietest thing we sell.

45 min

Cold Assembly

Three guided plunges with a house steward counting you down. Bring grit; we bring towels.

All treatments and prices

The dawn session is the honest one.

Between six and nine the pool hall is nearly empty, the steam is fresh, and the plunge is at its boldest. Book the first session and see the house the way the regulars do.

Book the dawn

Elsewhere in the house

Five rooms