A series of new measures form the Welsh Government will close caravan parks, campsites, national parks and allow councils to forcibly close pubs.
First Minister Mark Drakeford confirmed this afternoon he would shut the sites “to keep people safe and to reduce the pressure on our NHS”.
Caravan and second home owners have also been urged to stay at their main homes to not add pressure to rural services.
The move comes after thousands of holidaymakers headed to tourist hotspots in Wales at the weekend despite Government advice against non-essential travel.
Following reports that some pubs are ignoring the ban introduced on Saturday, the Welsh Government also warned those that continue to trade risk losing their licence.
Under the plans people camping or staying in caravans on holiday will be asked to return home from Monday.
Mr Drakeford said: “Today, we are taking action to close caravan parks, campsites and some of our most recognisable visitor sites to keep people safe and to reduce the pressure on our NHS.
“My message is simple. Please stay at home and save lives.”
Responding to the First Minister’s announcement that caravan parks and campsites across Wales will be made to close, Plaid Cymru Leader Adam Price said: “We very much welcome this decision by the Welsh Government to act upon the powers which they already have and close the caravan parks and tourist sites. This will give much needed comfort to those areas which have been inundated with visitors over the past few days and will ensure that there isn’t added pressure on our NHS.
“However, we need more action on the question of holiday lets, other tourist accommodations and non-primary residences. Current UK and Welsh Government advice states that people should not travel to their second homes because of the added pressure it puts on local services. That advice needs to be backed up by appropriate powers of enforcement if people choose to ignore it.
“Unless people cannot return home because someone is self-isolating in their primary residence, or for another humanitarian reason, all travel to non-primary residences should cease and people currently in non-primary residences should return home. Put simply, this will save lives.”