[Tagging] natural=bay on areas

Christoph Hormann osm at imagico.de
Mon Mar 27 10:51:19 UTC 2017

On Monday 27 March 2017, Andrew Harvey wrote:
> The wiki for natural=bay says "Since bays are generally part of a
> larger waterbody, either a lake or the ocean, they should not be
> rendered in solid color indicating water themselves."
> This creates a conflict with a recent change to Botany Bay
> https://www.openstreetmap.org/relation/1214649 in
> https://www.openstreetmap.org/changeset/47138016.
> It was changed from natural=water, water=bay to natural=bay. However
> it most definitely should be rendered as water, contrary to the
> advice on the wiki.

Bays are by definition parts of waterbodies and not independent 
waterbodies so they should not be tagged natural=water.  The waterbody 
they are part of should of course be tagged either natural=water or be 
outside the coastline if it is a maritime bay (as in this case as 
tagged by https://www.openstreetmap.org/changeset/46829336).

Christoph Hormann

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