The Italian island of Capri wants to bring in crowd control measures to manage stifling mass tourism, as Venice installed checkpoints capable of blocking off the most congested parts of the World Heritage city.
The limestone outcrop in the Bay of Naples is inundated with two million tourists a year, with the mayor telling the Daily Telegraph the island could "explode" from a social point of view under the sheer weight of visitors.
Venice introduced radical new measures last weekend, installing metal barriers that can divert tourists down less frequented alleyways so that locals and workers can go about their business without constantly dodging tour groups.
Tourists were confronted with the unprecedented sight of the waist-high black checkpoints across lanes leading from Venice railway station towards the Rialto Bridge, St Mark's Square and other popular sights.
They remained open but if tourist numbers become overwhelming tomorrow, the May Day bank holiday, they will be manned by police and closed to visitors. Only Venetians would be permitted to pass through.