For most people, preparing for a single attempt at the Three Peaks Challenge would be daunting enough.

But, for Sutton couple Tristan and Lucie Melen, this month sees them join a team taking on the gruelling challenge for the second time.

The Three Peaks Challenge requires adventurers to scale the highest mountain in each of Scotland, England and Wales within 24 hours.

Last year the group successfully conquered Ben Nevis and Scafell Pike and were on course to achieve the challenge when they got stuck in traffic behind a road accident on the M6 on their way to Snowdon, meaning that they completed the route in about 26 hours.

So, refusing to be defeated, they are teaming up again with friends and work colleagues for a second attempt.

Ms Melen said: “Planning has to be meticulous. We have chosen a weekend as close as possible to the longest day in the year, so that we have as much daylight as possible, and will be setting off to climb Mount Snowdon on the evening of June 19.”

The team will try to get as much rest and sleep in the 11 hours in the minibus between climbs, as they journey up from Wales to the Lake District to take on Scafell Pike, and then on to Scotland for the final leg up and down Ben Nevis before the 24 hour deadline.

All being well, that evening they will have double cause for celebration as it will also be Tristan’s 27th birthday.

“We have to do this again”, continued Ms Melen, “and we won’t be defeated. We are all taking on the challenge to raise money for Be Child Cancer Aware, who run the Beads of Courage programme in the UK.

“This is a cause close to my heart as they were a great support to a little girl I taught - Eilish - and her family, before she sadly passed away aged 4 in October 2014.

“Her beads continue to be a reminder of her joy despite immense bravery throughout her illness.”

Training for the event began months ago and has included walking sections of the Pennine Way. Tristan took part in the 26-mile Leaden Boot Challenge and Lucie has opted to cycle to her work at Beach Babies Nursery, in Wilburton.

Lucie and Tristan would welcome donations to their charity to help spur them on to complete their challenge. Anyone who would like to make a donation can do so online at www.justgiving.com/National3peaks2015.