Letswake makes Letswake Solo, an app for wakeboard and water-ski riders (letswake.app). Riders can report cable parks and water-ski spots that are missing on the map. Before anything is added here, I (Nils Stolper, Basel) check each report by hand on aerial imagery available in the editor and, where possible, on site or with the park. I add one place at a time with a clear changeset.