Car parks and trails could be close to stop people from visiting Snowdonia National Park after “unprecedented scenes”, according to bosses.
There were so many people on towering summits on Saturday it was “impossible to contend effective amicable distancing”.
Pen y Fan in a Brecon Beacons and some Welsh beaches were also busy.
Welsh ministers are deliberation their authorised powers to force people to stay divided during a coronavirus outbreak.
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Deputy Economy and Transport Minister Lee Waters pronounced some people were “pretending all is normal” during a time when hospitals were “turning canteens into spillover complete caring units”.
It comes as 7 some-more people in Wales died after constrictive a virus, holding a sum series of deaths to 12.
There have already been calls from internal politicians and medics to inspire second home owners and train owners to stay divided from Wales’ holiday hotspots, where some people have trafficked to self-isolate.
They also urged them to belong to superintendence on amicable enmity to forestall a widespread of Covid-19.
There have been identical appeals in Cornwall and a Scottish Highlands.
Snowdonia National Park Authority pronounced a area “experienced a busiest ever caller day in vital memory” on Saturday.
And signs have been put in Bala by people hurt by a numbers of people flitting by a Gwynedd town.
Snowdonia National Park Authority arch executive Emyr Williams said: “The area has been impressed with visitors.
“More worrying still is a poignant crowding on a towering summits and trails creation it unfit to contend effective amicable distancing.”
The management is job on a primary apportion and initial apportion to yield “stronger measures on nonessential transport and amicable distancing, to safeguard that we do not see a repeat of yesterday’s scenes opposite Snowdonia”.
The park said: “If no serve stairs are taken we will need to take extreme measures to strengthen a communities and health services in north Wales, such as shutting down automobile parks and trails.”
Boris Johnson has warned a NHS could be “overwhelmed” if people do not act to delayed a “accelerating” widespread of coronavirus, as he urged a UK not to revisit desired ones on Mother’s Day.
And Wales’ Health Minister Vaughan Gething tweeted to contend that he and First Minister Mark Drakeford were “actively deliberation a authorised powers to directly intervene” due to concerns about a liquid of visitors to Wales.
Mr Drakeford told BBC Politics Wales a “pace of a illness continues to quicken” in Wales.
“We need to take actions that will save lives,” he said.
He also pronounced people should usually transport if they “absolutely have to and keep your stretch from others”.
How are towering rescuers coping?
Mountain rescuers also done a unfortunate defence for walkers with Covid-19, or who are self-isolating, not to try on to a hills and put them during risk.
They described it as an roughly “bank holiday” atmosphere on a plateau and hills of north Wales on Saturday. From Moel Famau in a easterly and in Snowdonia, people were out in force.
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Llanberis Mountain Rescue Team pronounced it remained operational though a conflict could have an impact on it being means to “call a organisation together” during times, with some of a volunteers in frontline day jobs.
Chairman Alun Allcock spoke out after a organisation was called to rescue an harmed traveller after a organisation of 4 had trafficked to a area from Surrey on Saturday.
Central Beacons Mountain Rescue Team pronounced it was hampered when a trail was blocked by cars nearby Ystradfellte waterfalls on Saturday.
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What about a coast?
People seeking uninformed atmosphere on a Welsh seashore while coronavirus social-distancing measures request have been warned opposite holding “unnecessary risks”.
Porthcawl councillor Sean Aspey estimated there were about 6,000 people visiting a city on Saturday.
There were queues outward chip shops, people celebration and not amicable distancing, Mr Aspey said.
He urged people to “be considerate.”
“We have a high suit of aged people in this city and they are fearful to death,” he said.
“To see that going on yesterday was utterly shocking.
“We could have an blast of cases by no error of a own.”
Barry Island was also bustling on both Saturday and Sunday – with crowds of people on a promenade.
Welsh Government apportion Lee Waters told people: “If we don’t need to go out, afterwards don’t go out during all.”
“If we’re not careful, a supervision will have to move in transformation restrictions and we can’t contend we weren’t warned,” he said.
“We’ve got to listen to recommendation and stop sanctimonious all is normal”.