Image: Local hero Del Olsen (USA 253) in front of the skyline of San Francisco at the 2014 World. Photo © Robert Muller (slightly edited)

Image: Steve (USA) Clark. The man whose vision led to the exciting collection of new designs at the 2014 Worlds. Photo © Robert Muller

Image: "Blue Horizon Behind Blue Horizon John Ellis (GBR318) at the 2011 worlds, Travemunde, Germany. Photo: © Robert Muller"

Image: Todd Twigg, Simon Allen at the 2014 Worlds, San Francisco. Photo © Robert Muller

Image: GBR303 at the 2011 Worlds © Robert Muller ex German web site

Image: "Purple Thrills by name and by nature... Arne Stahl (GER76) at the 2011 worlds, Travemunde, Germany. Photo: © Robert Muller"

Image: 2014 Worlds, San Francisco. Race 4 Start line action. Chris Maas and Willy Clark battling at the pin end. Photo © Robert Muller

Image: "Alistair Warren (GBR317) at the 2017 Worlds, Pwlhelli. Photo: © Robert Muller"

Image: "Ready About! (Tacking for the Windward Mark) Chris Maas (USA246) at the 2011 worlds, Travemunde, Germany. Photo: © Robert Muller"

Image: Mikey Radziejowski at the 2014 Worlds, San Francisco. Photo © Robert Muller

Image: Chris Hampe mid gybe at the 2014 Worlds, San Francisco. Photo © Robert Muller

Image: "Marei Charlotte Junge (GER60) at the 2011 worlds, Travemunde, Germany. Photo: © Robert Muller"

Image: GBR310 at the 2011 Worlds © Robert Muller ex German web site

Image: David Clark at the 2014 Worlds, San Francisco. Photo © Robert Muller

Image: "Chris Maas (USA259) at the 2017 Worlds, Pwlhelli. Photo: © Robert Muller"

Image: Peter Ullman and Dave Clark fighting hard for a place at the 2014 Worlds in San Francisco. Photo © Robert Muller

Image: "Just about the most dramatic IC photo I've ever seen. Emma Grigull (GER65) at the 2017 Worlds, Pwlhelli. Photo: © Robert Muller"

Image: Canoes starting at the 2008 Billy No Mates. From Left, Gareth Caldwell, Robin Wood, John Nixon. © James Close, JEC Creative.