Best challenge treks around the world

For the seasoned trekker seeking a true test of endurance, challenge treks offer a thrilling combination of stunning landscapes and demanding terrains. From the rugged ridges of the Cambrian Way in Wales to the windswept shores of John O'Groats in Scotland, from the dramatic peaks of Romania’s Carpathian Mountains to the awe-inspiring heights of the Karakoram, each route promises an unforgettable adventure where breathtaking views meet challenging paths. Here, we showcase some of the best challenge treks around the world that you might not be familiar with already, and provide our go-to resources for planning your next epic journey.

• International trekking