Has anyone stayed at Mountain Fort chez les Berber near Bin el Ouidane. Is it possible to swim in the lake or is it better to go on to the cascades? Any advice very welcome.

There is a very good adress just around the lake (and a lot of informations and pictures),
click HERE

Bin el Ouidane is a very nice place, but i think it's better not to stay at «Chez les Berber»: it's an extremely poor and dirty accomodation (but prices are not low), and with very bad hygienic conditions. That was my experience on april 2010.

I's not a mountain fort, it's a gite d'etape. I stopped by a couple of weeks ago and it looked OK. You take a side road heading south on the western side of the lake, then an unsurfaced track heading west for about 500m.
Like most gites it has shared toilet/shower facilities with squat loos which some people will find unacceptable.
It's not the only cheapish place, there's another gite nearby, also Maison d'Hotes Ouidane. Plus a couple of up-market places.
Swimming isn't allowed in most reservoirs, not sure here.
Tim

Found a website for it. It's a gite that backs on to some old fortifications, http://www.littlemorocco.co.uk/