In 2001 after I'd travelled in Australia, I spent a night in Japan. Coming from Australian summer to Japanese midwinter was an amazing transition, and I felt like I'd slipped into a parallel universe as I wandered around temples in Narita town in the cold fog. As I flew out of Tokyo early the next morning, I was stuck in the middle seat of the middle row of the plane, but soon after take-off, as the plane was banking, I had the most stunning view out of a distant window of Mount Fuji, looking right down into its crater.
16 years later, after four and a half hours on the trail, I made it to the crater's edge, and it seemed strange to think of my younger self looking down on this.
I considered whether to walk around the crater rim. It didn't look like such a nice walk with an ugly building on the opposite rim, but then I realised that that opposite rim was the true highest point, and so I headed over. I was 3,776m above sea level.