yr.

However, Jeff Smith of Welsh language campaign group Cymdeithas yr Iaith, said the measures would help "to improve the supply of housing for local people by reducing the number of second homes and controlling the number of holiday lets".

His photograph showing people seemingly being guided by moonlight over the summit of Yr Wyddfa, or Snowdon, has been attracting mountains of praise on social media.

From now until November, those heading for Pen y Pass below the summit of Yr Wyddfa, or Snowdon as it is also known, will have to pre-book parking at £20 for an eight-hour slot.

They want to encourage more people to make use of the extensive bus network around Yr Wyddfa, including a large park-and-ride site less than 10 minutes away with services running every 15 minutes in spring and summer.

Another hiker who had been to catch sunrise on the summit of Yr Wyddfa said she wished she knew about pre-booking or the bus before arriving from Ipswich.