Police are warning people thinking of visiting beauty spots over the warm Easter weekend that they will target those breaking rules around unnecessary travel amid the coronavirus pandemic.
A police and crime commissioner said forces will move to an “enforcement phase” rather than issuing advice.
A Welsh chief constable said some visitors were travelling along B-roads at night to evade police.
National parks have simply warned: “We’re closed.”
Dyfed-Powys Police and Crime Commissioner Dafydd Llywelyn said: “We are now getting to a position where the message is so clear that individuals who are out and aren’t leaving the house for reasons stipulated in the guidelines, then there will be greater enforcement activity by the police.”
The stark warnings come almost three weeks since First Minister Mark Drakeford announced a series of severe restrictions on people’s lives to help stop the spread of Covid-19.