Hikers taking part in Trailtrekker this weekend will want to bring plenty of sunblock.
Glorious sunshine and temperatures of up to 20C are forecast in the Yorkshire Dales for the 100km trek on Saturday and Sunday.
Organisers are well prepared for the scorching weather and will be making sure the hundreds of participants are too.
Trailtrekker spokesman Tom Holloway said last night: “We’ll be checking they have certain elements of essential kit, such as sun hats and suncream, and telling people to keep their fluid levels up and to look out for their teammates.”
Water and energy drinks will be handed out at stops and checkpoints roughly every 10km.
Mr Holloway said: “If the weather is particularly hot we’ll always throw in a couple of surprise water stops along the longer sections.”
The full course takes an average of 27 hours to complete and takes in some of the Dales’ best-known peaks, including Pen-y-Ghent and Malham Cove. There are also 40km and 65km routes.
Participants have been told well in advance what kit to bring, including warm clothes for when the temperature drops at night. Lows of 10C are forecast for Skipton on Saturday night, though it is likely to be colder on higher ground.
Trailtrekker has been blessed with good weather since its launch in 2009. Since then it has raised more than £1m for aid projects across the globe, with a record £380,000 collected last year. More people are taking part this year than ever, with more than 220 teams of four preparing to cross the start line at 7am on Saturday.
Mr Holloway said: “It seems Trailtrekker is a constantly sunny event. It’s fantastic for participants because it means they don’t have to have their head in a cagoule – they can just relax and enjoy the scenery.”