Sierre is starting point for the tourist sites of the Val d'Anniviers including the villages of Vercorin , Chandolin , St-Luc Vissoie , St-Jean Chandolin , Grimentz , Zinal and Ayer . Sierre is starting point for the tourist sites of the Val d'Anniviers comprising the villages of Vercorin , Chandolin , St-Luc Vissoie , St-Jean Chandolin , Grimentz , Zinal and Ayer .