Translation of thereupon in German

If you press "Conjugate now" or "Display now " on the default demo you will be taken to an internal page for conjugations (you stay on the same site), but in a very different section, hope that's OK.
The writer describes this situation by putting the persons into a natural environment. On one side there was no shade and there weren't any trees, he says. This description can be interpreted.
It was fantastic to see that each ice berg had its own form and color. Unfortunately we could not reach all galciers, some were blocked by their own ice breaking off and floating in the lake.