BBC
Places like Beaumaris on the Welsh island of Anglesey are already popular with tourists and are expected to become even busier.
Protests in holiday destinations across Europe have been sparked by tensions over mass tourism, with locals saying overwhelming numbers of visitors are undermining their way of life.
But climate change is expected to encourage more tourists to escape the continent's rising temperatures and travel to cooler climates.
For example, changes in global temperatures are affecting Wales' tourism industry, with recent European Commission research indicating that a 3-4°C rise in global temperatures could lead to a 16% increase in tourism to west Wales.
But after residents of Barcelona, Majorca, Venice and elsewhere protested against “over-tourism”, could places like Wales also be at risk of being overwhelmed?
Linda Ostie, senior lecturer in tourism management at Bangor University, said Wales could indeed become “overtourized” if visitor numbers continued to rise.
But she said the key to avoiding conflict with local residents was to find a solution that benefits both those who live in the area and those who visit it.
“Without host communities there can be no sustainable and renewable tourism,” she added.
“We need to build partnerships and ensure tourism benefits all members of the community.”
Linda Osti said tourism should benefit “every member of the community.”
Østi said the term “overtourism” was first coined in 2016 by a journalist writing about Iceland.
“We've had international tourists coming to Iceland and we've noticed local people are resentful of tourism, so we hope Wales will act before we get to that situation,” she said.
“We also need to rebuild trust. There is no trust in the government anymore, so we need to build trust and finally tolerance — tolerance between all the parties involved.”
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In 2024, protests against mass tourism took place in the Spanish islands of Mallorca and Tenerife, and in Venice, Italy.
Even before global temperatures rise further, Welsh businesses are already seeing an increase in international visitors: Tourist Wales says the number of tourists from Germany could double between 2022 and 2023.
The number of cruise ships calling at Wales has risen to 97 this year, 25% up on last year.
Among the tourists visiting north Wales this summer were families from France who said they wanted to escape the heat back home.
“I prefer this temperature. Summer in Paris is too hot,” said Fabian Bars, who travelled with his wife Amélie and their children from Paris to the Ogwen Valley in Elyri.
Mrs Barrs said: “Before we came we were worried it would rain during our holiday but the weather has been lovely and not too hot – perfect.”
Amelie and Fabian Barz fled the heat and humidity of Paris with their children for a holiday in North Wales.
Elizabeth and Benjamin Belloppe, who travelled from their home near Nantes to Dolgarog in Conwy with their children Wilhelmina and Aziraphale, said the scorching heat elsewhere played a factor in their decision.
“It's really important when you have kids because it's too hot at night and you can't walk comfortably in the afternoon. It's really hard,” Belloppe said.
Mrs Veroppe said: “North Wales has lots of beautiful places to go for walks and little parks for children.”
Benjamin and Elizabeth Barrs, from France, also came to Wales in search of cooler weather.
Phil Scott, of Librides, which operates tourist boats on the Menai Strait between Anglesey and mainland Wales, said summer was always busy but it was better to attract customers outside peak times and the so-called “shoulder seasons” between summer and winter.
“We need the numbers of tourists in the off-season and older couples without children,” he said.
“They're a different type of visitor, they have different demographics, they spend differently, they have different needs.”
Anna Hume says less year-round tourism means fewer jobs in the industry
Anna Hume, who grew up on Anglesey and works at Libraid in summer, agreed that a longer season would create jobs.
“It's great that there are summer jobs in tourism and hospitality, but there's no reason for young people to stay here all year,” she said.
“There aren't enough jobs to support young people so we end up moving away and we can't afford to buy a house here because we don't make enough money.”
On a smaller scale, dissatisfaction with tourist numbers has already been felt recently, after Anglesey's Llanddwyn Beach became so popular following its appearance in the HBO drama “House of the Dragon” and there was widespread anger over traffic congestion.
Neville Evans, the area's councillor for leisure, tourism and marine, said tourists should be shown off the beaten path to more secluded areas.
“Some of the more interior areas remain untouched, so maybe it's an attempt to move the pressure away from some of the hot spots and really focus more on the less-beneficial communities without negatively impacting those communities as well.”
