Tislit, the "Lake of the Bride", sits a few kilometres north of Imilchil at around 2,200 metres. It is a shallow crater lake about 1.5 kilometres long, ringed by reddish hills and grazing land. In summer the water turns brilliant blue against the dry surrounding plateau; in spring it is fed by snowmelt and the shoreline is fringed with wildflowers.
There is a basic auberge by the water and a small parking area where the local festival is held. You can walk the entire shore in a couple of hours. Bring sun protection — there is almost no shade at this altitude — and warm layers, because nights even in summer drop close to freezing.