Routes and areas Idwal Skyline (Tryan, the Glyders, Y Garn) Idwal Skyline, October 1983 Snowdon Horseshoe and Idwal Skyline, July 1986 Tryfan and Idwal Skyline in winter (January 1988) Idwal Skyline in 1993 Tryfan and the Glyders – June 2007 Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Like Loading...