A DETERMINED father-daughter duo are embarking on a gruelling 150km trek over a frozen Siberian lake to raise funds for charity.

Sean Chapple, 52, and his daughter Chloe, 17, are setting out on their adventure today where they will be pulling all of their equipment and supplies in sledges, battling sub-zero temperatures, while crossing part of Lake Baikal in eastern Siberia.

They signed up to the seven-day challenge over the oldest lake in the world to raise money for the International Glaucoma Association as Chloe was diagnosed with the condition five years ago.

The temperatures on their quest are set to plummet to -18 degrees celcius.

Mr Chapple, who is a former Harwich and Dovercourt High School student and was part of the Parkeston Scout Group, had previously undertaken record-breaking expeditions to Iceland, and the North and South Poles.

Chloe, who lives with her dad in Somerset, said they will be sending daily updates via a satellite phone to their social media platforms – as there will be no mobile network.

She said: “Being diagnosed at such a young age was a huge shock, not only for myself, but also to my family.

“Not many people know children can also suffer from this condition, but it is not as rare as people may think.

“Having visited the children’s glaucoma hospital in London on numerous occasions, I was surprised to see the wide age range of children suffering from the condition.

“Due to the wonderful care of my consultant, my condition is now stable, and I have the opportunity to travel the world, visiting amazing places and do adventures as this one, but I’m sure this is not the case for everyone.”

The teenager said she is trying to raise as much money as possible for the charity, so the wonderful work it does can continue.

The adventurer, who is a student at Taunton’s Richard Huish College, will be camping each evening on ice during the trek.

Chloe has managed to raise almost £1,000 so far through donations.