Food Safety Report: La Porta d'Acqua - Restaurant On Grand Canal, Riva del Vin, Venice, Metropolitan City of Venice, Italy 2 years ago • details 8 Comments Comment Suspected food poisoning. Symptoms: Nausea, Vomiting, Headache Suspected source: Fish or alcohol Onset: Less than 4 hours Duration: 12 to 24 hours Sick: Me. Porta D’Aqua restaurant Venice