Well they had immediate contact with eastern europe right across the baltic sea so the question is kind of flawed in that way. There would have been traveling as soon as there were Vikings, especially for trade. Before the "age of the vikings" there was trade involving these people.

If you are talking outside all of europe I found this thread here on North African contact that was interesting.

https://www.reddit.com/r/AskHistorians/comments/1q663b/how_often_did_vikings_societies_trade_with/