Today, I went with the bicycle from Vaasa to Bjököby where I planned to visit the Kvarken Archipelago - an UNESCO World Heritage site. The distance to the Swedish mainland is just about 80 km and the depth of the water is max. about 25 meters. The area has been populated by human beings since 7000 years.
There is something special on this area: The land is rising at about 1 cm a year (as there was a Glacier 10.000 - 24.000 years ago).
On this trip we were hiking around 160 km from Germany to Italy. The demanding part was however not the distance but walking up and down a mountain on a daily base. The E5 originally starts from Konstanz (Germany) and ends in Verona (Italy). However, most hikers start the tour from Oberstdorf - since this is the part where you are actually in the Alps - and finish the tour in Meran.