SY Marlies
Discover passagesFresh from the log
Boats & crews
Explore cruising areas
How your log comes together
From the app
Finish your passage in Rubberduck → "Publish to Kielwasser". Chart, numbers and log arrive by themselves.
📈 Via GPX
Upload a track from your plotter or any app — Kielwasser turns it into chart and statistics.
✍️ Simply told
No track? No problem. Words and photos are enough — good stories don't need curves.