The next day I walked 17km along the shores of Lago Nordenskiöld to get to Albergue Las Torres, my last destination of the hike. The first couple of hours saw the path rise steeply for a while, then drop down to the lake shore and a beautiful beach. I sat down and relaxed in the hot sunshine for a while. Every now and then I'd hear the roar of an avalanche on Paine Grande from behind me, followed a couple of seconds later by its echo from the mountains across the lake in front of me.
Further on I reached the Albergue Los Cuernos, and stopped for lunch. While I was there, two tiny colourful birds seemed to be having a fight, dive-bombing each other frantically by where I was sat. One of them landed about an inch away from me, squawking furiously at the other. When his opponent flew off, he sat for a moment before noticing me and flying off. After that it was a long walk under a hot sun to the Albergue Las Torres.
The next day I set off early to climb up to the base of Las Torres themselves. Still tired from the previous day's walk, I hated the first section, known apparently to early British climbers as 'The Slog'. It's a relentless uphill stretch at an uncomfortable gradient, and it took me an hour to cover it. Then, all the hard work of getting to the top of the rise was undone because the path then dropped right back down to the banks of the Río Ascencio.
I stopped by the river for lunch, then pushed on. The next part of the trail followed the river for a while before climbing into the woods. I wound my way through the trees for about an hour, emerging at the bottom of a great swathe of huge boulders cutting down from a high ridge to the left. This, it soon became apparent, was the path, and I set off up, scrambling over the rocks. An exhausting 45 minutes later, I scrambled over one final huge boulder, and suddenly the towers were in front of me, soaring unbelievably into the clouds from a green icy lagoon in front of me.
I sat for a while by the shores of the lake, looking up at the tops of the granite towers, a mile and a half above me, as they appeared and disappeared within clouds. It had been a good hike to get here, but for serious mountaineers it would just be a prelude to the main objective of the towers.
Descending back down over the boulder field was treacherous, and I drew blood by falling heavily on my elbow. But from there things were easy, and I covered the ground back to the campsite more quickly than I had on the outward journey. I cooked up the last of my food, had a very weak coffee with all the grounds that I had left, and watched a beautiful sunset over the mountains. It was my last night in the park and I felt sad that the next day I wouldn't be cursing my slightly-too-heavy pack on a wild Patagonian trail. But as I left Torres del Paine on the bus, a gale of astonishing violence starting blowing and I was happy that I'd be spending the night under a solid roof.