Translation of vereinfachen

I expect it towards the weekend. Will you by any chance be in Switzerland in the week from June 15 to June 19? Most importantly, I will ask you to send me your homework so that I can correct it.
We had time to walk around the waterfall but refrained from entering the little lake at the bottom. My fellow tourtakers were quiet nice and we spend a while just sitting in the grass near the water.
The sun rose quickly and my images did not come out too impressive. Nevertheless, it was nice to sit on the boats roof by oneself and enjoy the quietness of the dawn in these calm waters of the Bay.