Ok I understand it, that I can use the Wpts.gpx together with my gpx.file. But there are much mmore waypoints, how do I know wich WP belongs to wich cache. I'm afraid that if I'm in an area where there are more than one cache that I get send from one Wp to an other without any structure and I only see wich wp belongs to a cache if I arive at the cache. But thx alteady for al the responces.