Climbing tag

Last Saturday, with some friends, we hick in the hills over the Rhône valley at Saint-Vallier.

It was a round trip and I record a GPX file.
The spot of the trip was special place with big rocks call in French “Les roches qui dansent”. These rocks are used as climbing school.
Which is appropriate tag in such a case?

you can find some hints if you go to http://wiki.osm.org and type **climb ** or **climbing ** in the searchbox in the right upper corner.

In the Key “climbing” the value “boulders” seems appropriate.
It is possible to have an another Key “Name” and “climbing:rock:=sandstone”…
So what is the syntax?
*Climbing:boulders:=”les roches qui dansent” ?
*

Hi.
how about:
natural=rock
sport=climbing
name=Le roque qui dansent