The weather keeps on getting warmer, so we grab some sandwiches and head for the lake. The bus drops us off at Bönigen, a small village on the western shore of lake Brienz.

The water level in the lake is about half a metre lower than it should be owing to an acute lack of rainfall so far this year. The steamers, which usually use Interlaken as their point of embarkation, instead have to pick up their passengers here at Bönigen.

It’s still very early in the ‘summer’ season, so there’s very little traffic on the lake, despite the beautiful weather.

We had a nice walk back to the railway station along the shoreline.

Back in Wengen our roof has predictably had its best day ever, producing an astonishing 119 kWh of electricity. As we were out for most of the day we only managed to use about 10% of this, and the rest has been sold back to the grid.