Venice's plan to charge tourists descended into chaos, showing how much of a headache overtourism has become

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• Last week, Venice introduced a €5, or $5.40, fee for day-trippers to try and mitigate overtourism.
• The fee is part of a trial that will run until July and apply on 29 "peak" days.
• The move sparked protests, highlighting the problems city officials face when tackling overtourism.

Venice has implemented a trial of a €5, or $5.40, fee for day-trippers on certain days.