Made in Germany and addressing Hare (Mister) is kind of a give away! go to a college or school that teaches the German language for a translation. there are several country's that use the German dialect.
Translation is easy, just put yourself in the shoes of the one who origianally sent the card....clearly it reads...
"Hello!....we are having a great time, there were a few delays, but we made it here safely. We wish you were here, can't wait to get back home, miss you all, love and kisses to all"
Google says it's Danish - "jeg skal gaa" translates as "I have to go" . . .