Motivation
Like you, I did a lot of swimming pool mapping; unfortunately a fair few years ago. Luckily, a few others helped out; and as a result:
https://overpass-turbo.eu/s/2kbr
There's ~3500 polygons which could be used for segmentation training in this area.
There may be a few issues with the age of the data
Alternatives
No response
Contribution
No response
Have you searched for similar issues before submitting this one?