To answer the first part of your question you would not be able to see much. The areas of France and Eastern Europe were under Military administration and as such you would not be able to easily travel to said areas. You really wouldn't be able to go outside of "Greater Germany"; the areas of pre-war Germany, Austria, and Danzig.

Under the Nazi regime most citizens took their holidays under the Strength Through Joy (Kraft durch Freude) program. Aside from providing millions of Germans with Volkswagen and access leisure activities at home it also allowed many German workers to go on subsidized holiday; primarily in Germany at ski resorts and picturesque Bohemian and Thuringian resorts. However well paid workers who could afforded it could take holidays outside Germany. The program even went as far as to construct large resorts such as Prora on the island of Rügen. The massive complex would have been able to accommodate 20,000 people but construction that was started in 1936 ended in 1939 when the war began. Although Strength Through Joy did not officially disband until 1945 the program efficiently halted in 1939 with the outbreak of The Second World War and as a result holidays for most Germans effectively ceased.

Simply put if you were a German in 1941-42 you probably would not have been able to take a holiday as you would have required the subsidizes that Strength Through Joy stopped giving in 1939.

As for the last part of your question it was planned to have German peoples replace the Slavs in Eastern Europe over decades. However the details of Generalplan Ost were destroyed at the end of the war so the specifics are up in the air. However during the war there was no German colonization of the East. The plan would have allowed you to get a farm in Eastern Europe after the war but that never happened.

Sources

Terry Morris, Derrick Murphy "Europe 1870–1991". James Taylor, Warren Shaw "Dictionary of the Third Reich" Richard J. Evans "The Third Reich in Power"