Timetravels is a travel agency based out of Finland with destinations in Sweden, Norway, Denmark, Finland, Iceland, Estonia, and Russia. They specialize in group travels and help visitors experience the north in full! 
Common trip destinations are Swedish Lapland and Norwegian Fjords as well as visa-free visits to Russian St:Petersburg. The exact destinations may change a little from year to year but there are many amazing places to visit in the Nordics and the neighbouring countries.

For more  information, please visit https://www.timetravels.com/student-trips/sweden/esn-sweden/esn-linkoping.html
You also find information about all trips offered by Timetravel here!