Translation of unrealistisch

We would love to have you here as our guests! My niece Katja had also many diffculties with the new surroundings. She is really upset with this new change. How was your trip to Italy? I'll keep writing to you!
How could I get better in Spanish if I had to eat by myself. Impossible. The next days we always ate together and sat around the table for hours discussing politics and the lives we were living.
The following day we took a boat trip to see the Los Glaciares National Park, where many glaciers formed hugh lakes. Many ice bergs were floating in these lakes and some of them had bizarre light blue colors.