The Salt Warehouses are at the end of the Fondamenta delle Zattere, 200 metres before reaching the Punta della Dogana, behind the church de la Salute:
From Piazzale Roma: line 6, get off at Santo Spirito, or line 1, get off at la Salute;
From San Marco: ligne 1 toward the railway station, the stop to get off at is the Salute.