Long distance skating is something special, and as always when moving on ice - you should take into account that there is also thin ice never mind how many cars and people you may see on the ice. Moving water, currents, wind, snow and seabed shapes affect how ice is forming and how it melts away. Join a skating group or a class to learn more and quickly about the basics, keep icepicks around your neck to pull yourself out of the water, and learn how to test and know more about ice.  Attached is a map outlining the closest waters to Ekenäs and what to expect. We may refer to this map in other articles. Be safe - join someone who knows and has accurate information for today!