What's the National Three Peaks Challenge that Princess Kate completed after cancer recovery

The National Three Peaks Challenge is one of the United Kingdom's toughest endurance tests, requiring participants to climb the highest mountains in Scotland, England and Wales within 24 hours.

The challenge has returned to the spotlight after Catherine, Princess of Wales, completed it to raise money for The Royal Marsden Cancer Charity, describing the trek as an opportunity to "explore life beyond diagnosis" following her recovery from cancer.

She became the first member of the Royal Family to complete the feat, using the challenge to raise awareness of life after cancer and the importance of holistic care.

What is the National Three Peaks Challenge?

The National Three Peaks Challenge involves summiting Ben Nevis (1,345m/4,413ft) in Scotland, Scafell Pike (978m/3,209ft) in England, and Snowdon (Yr Wyddfa) (1,085m/3,560ft) in Wales.

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Participants attempt to climb all three mountains within a 24-hour period, with the clock including not only the hikes but also the road journey between each mountain.

The traditional route involves approximately 23 miles (37 kilometres) of walking, more than 10,000 feet (around 3,064 metres) of ascent and roughly 460 miles (740 kilometres) of driving.

Why is it considered so difficult?

Although each mountain can be climbed individually by recreational walkers, completing all three in under 24 hours is a significant endurance challenge.

Participants typically spend around 11 to 13 hours walking, leaving limited time for the lengthy drives between the mountains. Sleep is virtually non-existent, making fatigue one of the biggest obstacles.

The challenge demands excellent cardiovascular fitness, strong leg endurance, navigation skills, especially in poor weather or darkness, mental resilience, and careful planning of logistics and transport.

Weather conditions can change rapidly, particularly on Ben Nevis and Scafell Pike, with rain, mist and strong winds often adding to the difficulty.

Which mountains are climbed?

1. Ben Nevis

Located near Fort William in the Scottish Highlands, Ben Nevis is the highest mountain in the UK at 1,345 metres.

The climb is physically demanding because of its long ascent and often unpredictable weather.

2. Scafell Pike

England's highest peak, located in the Lake District National Park, Scafell Pike is known for its rocky terrain and can be particularly challenging to navigate after dark.

3. Snowdon (Yr Wyddfa)

Situated in Eryri (Snowdonia) National Park in north Wales, Snowdon is the final summit for most participants.

While often considered the easiest of the three climbs, reaching it after nearly 24 hours of exertion makes the ascent especially demanding.

Why did Princess Kate take on the challenge?

The Princess of Wales undertook the National Three Peaks Challenge as a deeply personal project after announcing she was in remission following cancer treatment.

She said the challenge was about more than physical endurance, explaining that she wanted to highlight life after a cancer diagnosis and raise funds for The Royal Marsden Cancer Charity, where she received treatment.

She also used the expedition to advocate for a more holistic approach to cancer care that supports patients emotionally, psychologically and spiritually, as well as medically.

The challenge concluded with an emotional reunion with Prince William, Prince George, Princess Charlotte, Prince Louis and members of the Middleton family, photographs of which were later shared publicly.

Can anyone take part?

Yes. Thousands of people attempt the National Three Peaks Challenge every year, often raising money for charities.

However, organisers strongly recommend undertaking proper training beforehand. Completing the challenge safely requires physical preparation, suitable hiking equipment, weather planning and, ideally, experienced drivers or support teams to manage the long road transfers between the mountains.

Many participants spread training over several months, combining long-distance hikes, hill walking and endurance exercises to prepare for the demanding schedule.

Why the challenge resonates

For experienced hikers, the National Three Peaks Challenge represents one of Britain's best-known endurance adventures. For many charity participants, however, it is about far more than climbing mountains.

Princess Kate's completion of the challenge has drawn renewed attention to its symbolic value.

By linking one of Britain's most demanding outdoor pursuits with cancer recovery, resilience and fundraising, she has highlighted how physical challenges can also become powerful expressions of hope, perseverance and life beyond illness.