A city-based endurance cyclist is set to cycle thousands of miles across Japan –solo and unsupported – to help the fight to end dolphin slaughter.

Ollie Blackmore's epic challenge will see him ride 3,600km (2,236 miles) in 21 days.

The 40-year-old, who lives in the Golden Triangle area of Norwich, is aiming to raise £15,000 for Ric O'Barry's Dolphin Project – a cause dedicated to the welfare of dolphins.

Mr Blackmore, who runs digital agency Selesti, said: 'I'll start my ride to coincide with the start of the hunting season. My challenge is not only a massive endurance test and commitment, but also to cycle to key places throughout Japan and try to raise awareness about the cruelty of the slaughter, capture and captivity, the alternatives and the dangers of eating this meat.'

To sponsor Mr Blackmore, go to www.crowdrise.com/Ollies3600kmRide AcrossJapan

Are you undertaking an epic challenge for a good cause? Email kate.scotter@archant.co.uk