I'm an avid scuba diver. Ever the domain of the wealthy, scuba diving required both access to the ocean and a shite ton of money for travel & equipment. Not really having any of it, this awesome hobby just kinda passed me by.
The caption read "A boy went to away to war in 1914 and left his bike chained to this tree. He never returned, leaving the tree no choice but to grow around the bike." Thank you to the boy and his sacrifice which allowed the tree to grow.