It’s a waterfall, a little way up the valley of the Afon Eiddew, one of the two rivers that feed the head of Lake Vyrnwy. At this time of year, the sunshine brings out the colours in the hillsides – but also casts shadow over the lower parts of the fall. We’ll perhaps have to go again – either later in the season, or earlier in the day, when the morning sun would be shining straight up the valley.