Translation of unsteady in German

I have the OK. They will make the changes and resend the homework tasks. I think that beginning of July would be a good date to start learning. What do you think? We should not wait too long.
We have an option of uploading an excel file. However, we do give this option only to institutions and schools. The other ideas may be given in the future too. Thanks a lot for a great feedback!
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.