[OSM-newbies] mapping islands of a salt flat

[Alexandros Papadopoulos]

Hello.

I am mapping the islands of the Salar de Uyuni
(http://osm.org/go/NK_7Jv--) as I found it particularly annoying they
were not on the map when I needed this information.

The one island that *was* already mapped
(http://www.openstreetmap.org/browse/way/43540410) was tagged with
natural=land which seems to be deprecated.

For this case (a salt flat), I have been using natural=coastline and
place=island/islet. Is this OK?

And is it still true that it may take months for the changes in
coastline to render on the map and thus the newly mapped islands to
appear?

Cheers

Alex