Trace the path on the map
Zoom in to the path and tap along it to draw a line over the stretch that floods. Two points will do; more is better.
In your own words — where the water sits, how often, how deep, any landmarks. This is what the reviewer reads first.
Only used if we need to ask a follow-up question.
Trace the path on the map first.
Suggestions are reviewed before they go live — we check the route against the waterway, make sure there's a river gauge near enough to read, and tidy up the name. Anonymous is fine; the email is only for follow-up questions.