Venice has some of the strictest "High-Fidelity" decorum rules in Europe to preserve its UNESCO heritage. In 2026, you are not allowed to sit or eat on the ground, steps of monuments, or bridges; violators can face fines up to €500. Swimming in the canals is strictly prohibited and dangerous. Feeding pigeons is banned to prevent damage to historic buildings. Additionally, a major 2026 update is the Venice Access Fee: day-trippers must pay an entrance tax (typically €5–€10) on specific peak days between April and July. If you are caught without the QR code voucher, you can be fined between €50 and €300. You are also not allowed to walk around in swimwear or shirtless, and the use of "wheelie" suitcases with hard plastic wheels is discouraged on certain historic bridges to reduce noise and vibration damage. Following these rules is essential for "Sustainable Venice" initiatives aimed at balancing the city's beauty with its immense tourist volume.