Openstreetmap-carto: do not render boundary of an underground nature reserve (location=underground)

[matkoniecz]

https://www.openstreetmap.org/way/510671596#map=18/49.98105/20.07812

I have doubts whatever name should be rendered,

[kocio-pl]

For the record: that's an example of a more general problem with underground features (including parkings) related to #1977 and #552.

[mboeringa]

To be honest, I think this is misclassified, even though the Polish name indeed seems to carry "nature" in it (which is unfortunate).

What "nature" is there a possible 1000 meters underground (except the rare bacteria species able to survive at these depths)? This is a geological monument, not a nature reserve, and as such should likely carry a:

boundary=protected_area
protect_class=3 (Natural Monument or Feature: ... protect a specific natural monument, which can be a landform, sea mount, submarine cavern, _geological feature such as a cave_ or even a living feature such as an ancient grove. They are generally quite small protected areas and often have high visitor value. Cultural and archaeological important. )

and have the leisure=nature_reserve tag removed.

This is also corroborated by this Wikipedia page linked from the tag list of the feature, that talks about a "Polish database of representative _Geosites_ selected for the European Network" instead of "nature reserves".

I also think that whatever measures are taken to not render it, people will likely re-tag it to something that does render, because people want to see this stuff rendered, and certainly if it is a visitable tourist attraction, although this incentive could be reduced by a adding a node with tourism=attraction tag to already have something on the map.

[matkoniecz]

I created https://www.openstreetmap.org/note/1266528 and replied there. If you believe that leisure=nature_reserve tagging is wrong please reopen that note and comment there.

[mboeringa]

@matkoniecz , see the note and my comments.

[jeisenbe]

The wikipedia article on this area says:

"Pierwszy w Polsce rezerwat podziemny. Zajmuje powierzchnię 1,04 ha, zaś jego naziemna otulina liczy 2,065 ha[1]."

" The first underground reserve in Poland. It covers an area of 1.04 ha, while its above ground buffer covers 2.065 ha [1]."

So the above ground protected area is actually larger than the underground area. The area mapped appears to be about 120 x 100 meters (https://www.openstreetmap.org/way/510671596), which is probably just the underground area, however.

There are only 6 protected_area and nature_reserve features with the tag location=underground, so I don't think this is common enough of a problem to be worth fixing: http://overpass-turbo.eu/s/SEb

So I am closing this issue. However, if someone else wants to submit a PR to fix this, we can still consider it