I have never been so grateful for a heated steering wheel in my life. There we were, trundling up through Schleswig-Holstein in mid-January, me smugly thinking I'd packed sensibly for a Baltic winter break, only to discover at a service station near Kappeln that my "sensible" boots had been left on the kitchen table in Surrey. My other half did that slow blink he does when trying to decide if I'm worth the hassle, then wordlessly handed me his spare trainers. Two sizes too big, absolutely no grip, and I spent the rest of the drive doing an accidental impression of a clown pedalling an invisible bicycle.

The Ostseeresort Olpenitz materialised through bare trees and a sky the colour of old dishwater, which sounds grim but was actually rather magnificent in that stark, northern way. The Strandnelke sat right on the water's edge, a modern timber-clad affair that looked almost aggressively Scandinavian against the flat, frozen landscape. I half-expected a brooding detective to emerge smoking a cigarette.

January had stripped everything back to essentials. No summer crowds, no sailing boats cluttering the Schlei inlet, just the occasional hardy dog walker and the relentless, rhythmic slap of cold water against the shore. The resort felt half-hibernating, which suited us perfectly. Our apartment had underfloor heating that made my toes weep with gratitude, and enormous windows framing a view so bleakly beautiful I kept taking photographs that all looked essentially identical.

That first evening, we ventured out to find food and quickly learned that winter in this corner of Germany operates on reduced hours. The little harbour at Olpenitz itself was virtually shuttered, boats lifted out and cocooned against the season. We drove the few miles to Kappeln where a harbour-side restaurant was valiantly staying open for what the owner called "the determined few." We ate fresh fish and drank too much Gluhwein, watching our breath cloud the windows as fishing vessels creaked against the ice-rimed quay.

Back at the Strandnelke, the darkness felt absolute. No residual summer twilight here; night arrived promptly and authoritatively. We sat with the lights off, watching the occasional navigation lamp wink across the water, the heating clicking and ticking as it fought the Baltic chill. I wore two jumpers and my partner's ridiculous trainers, feeling simultaneously ridiculous and profoundly content.

Morning brought a frost so thick it transformed the boardwalks into something almost theatrical, like a film set for a Nordic crime drama. I attempted a walk along the shore, promptly skidded on a patch of black ice, and executed a spectacular windmill-arm recovery that I'm certain entertained a distant seal. The cold had that particular coastal sharpness, salted and insistent, clearing my head of London cobwebs with ruthless efficiency.

What struck me most, perhaps, was how the season demanded a different rhythm. No rushing between attractions, no pressure to maximise daylight hours for beach activities. Instead, slow breakfasts watching the grey light strengthen over the Schlei, reading actual books because the weather offered few alternatives, conversations that meandered because nothing needed scheduling. The winter had imposed its own pace, and we gradually surrendered to it.

By our third day, I'd stopped checking the weather forecast with my usual anxious compulsion. The low January sun, when it appeared, sat so close to the horizon that everything seemed permanently golden-hour lit, even at midday. Shadows stretched impossibly long across the frozen ground. I found myself noticing details I'd never register in summer: the particular crackle of ice underfoot, the way the reeds stood rigid and silvered, the absolute stillness before a gust came barrelling off the sea.

We left on a morning when frost smoke rose from the warmer water, ethereal and fleeting. My boots remained in Surrey, but I'd acquired something better: a proper understanding of what this place actually is when stripped of its summer costume. The Strandnelke in January is not trying to impress anyone. It simply exists, solid and warm, while the Baltic does its ancient, indifferent thing beyond the windows. I rather loved it for that honesty.