I'd like some discussion about what the definition should be of a WHS hotspot.
Now it is:
'Sites located in a geographical or administrative region with a cluster of at least 4 WHS within a radius of ca. 250km.'
I'm sure about the 4 WHS (rare enough), but not about the region or the radius of ca. 250 km.
One way I like to use is going to the little interactive map on the Unesco website (f.e.: Pont du Gard
) and drill down by clicking on the map until you see an area of 215km x80. A red circle will appear, and all WHS within that circle or touched by it, are located within the hotspot!