It was rather bouncy for a while until I reached the next road. I continued on to the road to Kirknewton when I noticed my Garmin Edge 800 wasn't recording the distance correctly. It had stopped and the screen had frozen. I stopped for a while to do a reset. It meant the data for the earlier part of today’s ride was lost but my backup et30 still seemed to be functioning correctly. With the 800 seeming to function correctly I continued east for a few miles where I took a right turn down a steep hill to cross over the railway. There was a steep climb out of the valley needing my bottom gear. I turned left towards Balerno where I firstly turned left down onto the riverside track before realising I’d turned too soon as I needed to ride into Balerno to the Scotmid supermarket to buy water. It was an extortionate 65p per 2lt. That wasn’t the main worry. The adjacent school must have been on late lunch break and most of the pupils had just descended on the same shop. They’d all bought a collection of junk food shush as crisps, chocolates pasties pop etc. I returned to the riverside path along the Water of Leith. The trail follows the route of an old railway and when I crossed the river by the first railway bridge I stopped to check out a steep path up to the right. The map shows it heading for the site of Lenox Tower, an old ruined castle. I asked a woman walking her dog if that was the right path. She said it was but the tower was in a private garden area. I wheeled my bike up the steep climb with difficulty. At the top I left my bike and walked along the rough path to the road. The tower was some distance ahead but I still couldn’t see it. I returned to my bike and erected my tent.