In April 2014, Dave S dug up a patch of Hyde Park beneath a tree next to the Serpentine. This is his explanation:
Underneath a tree next to the Serpentine holds an intimate memory. Where I met one of the most important people in my life today.
Although he didn’t spell it out, we had the impression that he wanted to preserve the memory as something private, safe from the indignities of dog pee and tourist feet.