Despite government guidance telling us all to stay at home more and more grass fires are being deliberately lit across Wales.
Crews from South Wales Fire and Rescue Service have attended nearly 100 grass fires in March alone.
On Sunday five crews battled to what is believed to be a deliberately-lit grass fire in Trebanog, Porth, for more than three hours. Two people had to receive care from paramedics as a result of the incident.
A spokeswoman for South Wales Fire and Rescue Service said: "At approximately 4.40pm on Sunday, March 29, we responded to reports of a grass fire in Trebanog, Porth.
"Crews from Pontypridd, Tonypandy, Caerphilly, Abercynon and Gilfach Goch station attended the scene and extinguished the fire.
"Two people received care from paramedics at the scene. The incident concluded at approximately 8.15pm."
The fire service confirmed that the cause of the fire was believed to be deliberate.
WalesOnline reporter and Trebanog resident Lydia Stephens said the fire soon spread towards a nearby housing estate where "the houses were covered in smoke".
She said: "We first noticed the fire at about 5pm and it was right in the middle of the mountain then, not near any houses or anything.
"It spread so fast. We live opposite where the fire was and we could literally see the wind take it up the mountain towards Rhiwgarn housing estate.
"It was terrible. I just kept thinking 'how on earth can the fire service put that out?' as the mountain is so big and it was started in the middle of it.
"We were watching them walk to it and the fire service workers looked so small compared to the flames.
"My grandmother lives on the housing estate where the fire made its way towards and said all the houses were covered in smoke.
"So many elderly people who suffer with respiratory issues are already worried because of the coronavirus, stuff like this makes that 10 times worse."
Less than two hours later crews were at the scene of another grass fire for more than five hours just a few miles away in Penrhys.
A spokeswoman for South Wales Fire and Rescue Service said: "At approximately 6.31pm on Sunday, March 29, we responded to reports of a grass fire in Penrhys.
"Crews from Pontypridd, Treorchy, Merthyr, Aberdare and Tonypandy station attended the scene and extinguished the fire.
"The incident concluded at approximately 11.35pm."
In Swansea crews from Mid and West Wales Fire and Rescue Service were called to another grass fire in the area, this time in Gower.
The fire service stated that the grass fire, which took place near Pennard at around 10pm on Sunday, was started deliberately.
One resident who witnessed the blaze claimed that the flames were just 10m from their front gate and 20m from other houses.
A Mid and West Wales Fire and Rescue Service spokesman said: "On Sunday, March 29, at 9.31pm, firefighters from Swansea West attended a deliberately lit grass fire near Pennard, Swansea.
"Approximately two acres of undergrowth was on fire. A hose reel, wildfire blower, and beaters were used by the fire service.
"The fire service left the incident at 10.33pm.
"If anybody has any information regarding this deliberately-lit fire please phone the police on 101."
A spokeswoman for South Wales Police added: "At 10.30pm we were made aware of a fire in Pennard. Anyone with information relating to this incident should contact 101 quoting occurrence 2000107354."
It comes after crews spent more than four hours battling a blaze on Kilvey Hill a week ago and more recently had to extinguish flames at Swansea Bay when a wooden viewing platform was set alight.