Explorer and author Robin Hanbury-Tenison has a wealth of experience in travel, conservation and campaigning to preserve our natural world.

Now – to mark his 89th birthday – he’s taken on the challenge of a lifetime by rowing 22 miles on the River Tamar, thanks to support from students and staff at the University of Plymouth.

He completed the challenge for the Thousand Year Trust, a charity dedicated to tripling the amount of temperate rainforest in the UK.

His sustainability efforts saw him awarded an honorary doctorate from the University in 2012 and staff and students have been pivotal to his latest endeavour.