I have never been so relieved to see a train station toilet in all my life. The journey from Erfurt to Jena had been straightforward enough, a smooth forty-minute glide through the patchwork fields of Thuringia, until I realised with a sinking feeling that I had left my waterproof trousers hanging on the back of my bedroom door in Leeds. There they were, perfectly positioned for a walking holiday, and there I was, stepping onto platform three with nothing but a pair of chinos and a misplaced sense of optimism about the German weather forecast.

The walk to the holiday home took me through Jena's old town, past the striking twin towers of the Stadtkirche St. Michael, where I stopped to wrestle with my rucksack and pretend I had meant to pause for cultural appreciation all along. The property sat on a quiet residential street, a modest terraced house with a small garden that looked considerably more inviting than the bruised purple clouds gathering overhead. My host had left the key in a lockbox with a note wishing me "gutes Wetter" which, given the circumstances, felt almost aggressively ironic.

I dumped my bags with the theatrical exhaustion of someone who had not actually climbed any mountains yet and immediately consulted the local walking map I had optimistically printed three weeks prior. The Saale Valley Trail beckoned, promising riverside paths and woodland ridges, and I resolved to tackle the stretch toward Dornburg the following morning regardless of meteorological reality. This, I told myself, was the British way. We do not surrender to weather. We merely complain about it more articulately than other nations.

Dawn arrived with the acoustic enthusiasm of a German refuse collection service and a sky that looked as though someone had wrung out a very dirty sponge directly above my bedroom window. I set off anyway, chinos rolled to the knee in a gesture of defiance that would prove catastrophically misguided. The first hour along the Saale was genuinely magical, mist curling off the water, herons watching me with the superior expression of creatures who had definitely remembered their waterproof plumage. Then the proper rain began.

I have experienced British rain. I have been soaked through on the Pennine Way, dripped upon in Dartmoor, and once spent four hours in a bothy watching a storm turn a Scottish glen into something approaching a water feature. German rain, I discovered, is somehow more organised. It falls with purpose. It has a schedule. By the time I reached the turning for Dornburg's castles, I was conducting internal negotiations about whether hypothermia was genuinely preferable to the indignity of turning back.

The castles, perched on their limestone outcrops, emerged from the murk like a particularly unhelpful mirage. I had intended to explore all three, to wander the Rococo interiors and contemplate the Enlightenment thinkers who had paced these same terraces. Instead I pressed myself against a locked information board and ate a squashed sandwich while water found its way through seams I had not previously known existed in my supposedly decent jacket. A family of proper German walkers passed me, kitted out in Gore-Tex from eyebrow to ankle, nodding with that particular sympathy reserved for the obviously underprepared foreigner.

The return journey became an exercise in psychological management. Every squelch of my inadequate footwear became a meditation on impermanence. Every fresh rivulet running down my collar was, I told myself, character-building. I passed through Winzerla, took a wrong turn somewhere near the university's satellite campus, and found myself on a cycle path being aggressively overtaken by commuters who clearly considered walking in this weather a form of mild mental illness.

By the time I stumbled back to the holiday home, my chinos had achieved a texture I can only describe as biologically active. The garden, which had seemed so charming that morning, now resembled a water feature I was personally contributing to. I stood in the kitchen, dripping onto the linoleum, and experienced that particular clarity that comes from complete physical discomfort. I had come to Thuringia to walk, to stride confidently through landscapes that had inspired Goethe, and instead I had been thoroughly humbled by a basic failure to check the packing list.

The following days brought a reluctant truce with the weather. I developed a system of shorter, more tactical walks, darting out between radar blips like a particularly committed military operation. The Landgrafen path above Jena, with its panoramic views of the city and the surrounding limestone country, rewarded an early start before the afternoon storms rolled in. The botanical garden provided shelter when the heavens opened with sudden theatricality. I learned to read the sky with the anxious attention of a farmer, to recognise the particular grey that meant business, to appreciate the brief, golden intervals when the Saale valley seemed to glow with compensatory beauty.

By the final morning, something had shifted. I woke to actual sunshine, that rare, transformative light that makes every wet memory seem slightly exaggerated. I walked the Paradiespark along the river, finally dry, finally comfortable, watching families and students reclaim the paths I had struggled through in my sodden solitude. A group of elderly Germans passed me, walking poles clicking in satisfying rhythm, and I felt a strange kinship. I had not conquered the weather. I had not even really conquered my own poor planning. But I had walked anyway, through the ridiculous and the uncomfortable, and found something in the stubbornness of it that felt genuinely earned.

I left the waterproof trousers on the back of the door again when I packed, but this time deliberately. Some lessons, apparently, require repetition.