A massive blob deep under Hawaii seems to be ...

Beneath the vast Arctic and Antarctic ice sheets, there’s a weird world unlike any other

Head to Alaska, America’s largest state, for everything from gold-rush glamour to Arctic adventures

JB Smith goes searching for solitude in the forested folds of the Rhinogs – and finds himself falling under the spell of Eryri/Snowdonia’s quieter side

Just before Christmas, a bitter wind blew in. Ice and snow descended, first in Scotland and then, on Boxing Day, across the rest of the UK. Before it could melt or the new year arrive, a second blizza

4 38.9km / 24.2 miles / 12-14 hours Ascent 2927m/9603ft