Les îles du Salut

Not to be confused with the independent country Guyana.
French Guiana is further East, and spaceport of the European Space Agency ESA.

Click to enlarge

The pictures are from the Islands of Salvation near the coast of French Guiana. I'm also attaching two pictures of the envelope, which I find particularly pretty:

All the stamps you can find in French Guiana are French, too, and the Euro is used as currency. Here, you can see Marianne, a national symbol of France. At least I think it's here. Hope I'm not confusing her with Marlène or Marie, she would be furious.