The London Triathlon, Excel Centre, London

Individual entries for the triathlon are now closed but you can still enter as a team or compete for charity. Distances include a super sprint (400m swim, 10km bike and 2.5km run) and an Olympic distance (1,500m, 40km, 10km).

Visit thelondontriathlon.com for details.

Coleman Adventure Challenge, north Wales

A true adventure challenge needs to test a wide variety of skills and this race across north Wales does just that. Includes trekking, canoeing and night navigation.

Visit merseyventure.com for details.

London to Paris Bike Ride, London

Beginning bang in the middle of central London and finishing under the shadow of
the Eiffel Tower, this 300km road race, which takes place over three days, is one of the most scenic and testing events you're likely to find.

Visit timesoutdoors.com for details.

Mull Grand Traverse, Isle of Mull

This bike-and-hike day race across the hilly yet stunning coastal terrain of the beautiful Hebridean Isle of Mull has four levels that will appeal to beginners and experts alike. All courses begin with a 39km bike route followed by a hike of up to 47km.

Visit mullgrandtraverse.com for details.