Snowdon and other Welsh mountains have now been shut off to the public because of the coronavirus outbreak.
Snowdonia National Authority Park Authority (SNPA) announced the decision after hundreds of people were spotted walking on the mountains at the weekend.
From now Snowdon, Cader Idris, 'Ogwen' - Y Garn, Glyderau, Tryfan and Cwm Idwal, Aran Benllyn and Aran Fawddwy are closed to the public.
It follows unprecedented scenes at the weekend, with the Pen y Pass car park at Snowdon and nearby roads, jammed with traffic as hikers piled up Snowdon.
This was despite government guidance over social distancing, which urged people to stay at home and not take unnecessary journeys to stop the spread of covid-19.
The Park Authority has also closed all its main car parks, information centres, Plas Tan y Bwlch - its study centre, and warden centres - although wardens will remain at work with “limited social contact”.
All scheduled events, volunteer activities and authority meetings are cancelled until further notice, and the head office is closed to the public.
Meanwhile coastguards says people are still going to the coast and beaches despite warnings to stay at home because of COVID-19.
They say they are getting a number of calls reporting groups of people on beaches across the UK.