Yesterday I took a train to Leeuwarden, the capital of Friesland in the north of the Netherlands, to meet Kerikeri artist Chris Booth. He's working on a "living sculpture" for Vijversburg Park, which tries to combine art, nature and social goals. Once he's finished making the 4m-high stack of sawn-up branches you see here (with help from his intern, Isa), he'll place a large, holed boulder (a so-called "zwerfkei") on top. As the wood rots the boulder will slowly slide down the pole until, about 50 years from now, it reaches the ground. Chris describes it as a celebration of fungi, "the greatest recyclers on the planet".
After this Chris will head to Hungary to take part in an exhibition of environmental art.