Lake Garda Recreation Center
(Source: Italian postcards)

(Top) Aerial view of the beaches at Tirrenia. Piazza Belvedere, where the American cars were photographed (second postcard) can be seen in the bottom center of the postcard; the American beach (Bagno degli Americani) operated by Special Services is located approximately were the arrow is pointing to, top right of the aerial view.
(Bottom) the American cars shown are POVs of US service members who are visiting the recreation area.