Cornwall Air Ambulance is taking on national and global challenges in its fund-raising efforts for 2018.

Britain’s Three Peaks Challenge will be run as the main Cornwall Air Ambulance challenge, with places also organised on global challenges in aid of the life-saving charity.

Becky Wise, senior fund-raising officer, said: ‘Challenge events are a fantastic and fun way to fund-raise for the charity. You could experience some of the world’s most incredible sights, while helping to save lives throughout Cornwall.

‘We have organised extraordinary challenges which offer unforgettable experiences. We’re inviting you to triumph the three peaks in just 24 hours, trek the Great Wall of China, summit Mount Kilimanjaro, or cycle from coast to coast of Costa Rica.’

Challenges are now open and accepting sign-ups are:

Take on the UK’s three tallest peaks in 24 hours for the Three Peaks Challenge

Conquer the 5,895 metres of the world’s highest free-standing mountain, Mount Kilimanjaro.

Discover the lost city of Machu Picchu on a five-day trek through Peru.

Cycle through the tropics of Costa Rica from coast to coast on a 286-mile seven-day adventure.

Trek the Great Wall of China on a five-day trip.

Cycle from coast to coast exploring the UK on a 136-mile trip from the Irish sea to Tynemouth.