UK Treks:
24 Peak Challenge, Lake District
Hadrian's Wall Trek
Ben Nevis Climb
London2Brighton 100km Walk
Night Rider, London
Pembrokeshire Coast
Thames Path Challenge
Three Peaks Challange
Trans Pennine Challenge
TrekFest, Peak District

UK Cycles:
c2c Coast to Coast
Edinburgh to Dublin
Edinburgh Night Ride
UK Coast to Coast Cycle