Police are appealing to visitors to the Brecon Beacons to park considerately on what promises to be a busy weekend.
A Fan Dance challenge event will take place on Pen y Fan, which is expected to increase traffic in the area, particularly in the Storey Arms area.
Dyfed-Powys Police said they will be enforcing the rules on parking and the clearway on the A470, with traffic officers patrolling the area.
Anyone planning to visit the area is asked to consider finding alternative parking and routes to Pen y Fan.
Sergeant Owen Dillon of the roads policing unit said: “I anticipate a very busy period on the local roads this weekend and particularly in the area of Storey Arms.
“In addition to the large number of visitors I expect to walk up PYF, the Fan Dance event is taking place, bringing extra parking to the area.
“There are a number of alternative places to park your vehicles if visiting the Brecon Beacons, which still have good routes to Pen y Fan. I would urge anyone planning on visiting to consider parking at locations including Cwm Gwydi or the Neuadd Valley.
“There is also a bus service available between Merthyr and Brecon which stops at Storey Arms.
“We will be continuing with police patrols of the Storey Arms area this weekend and will take action where it is required. Our priority is ensuring there are no obstructions on the A470 and that people observe the clearway and do not park on the road.
“We appreciate that the beautiful Brecon Beacons draw in thousands of walkers, and we encourage visitors to come and enjoy the region.
“We just ask that they do so safely, taking into consideration their own needs, that of other walkers, and other road users who also want to come and enjoy what Dyfed-Powys has to offer.”
The Fan Dance series of races, some of which takes place on Saturday and Sunday, follow the gruelling 24km route used as part of the selection process for Britain’s special forces, including two ascents of south Wales’s highest mountain.