Guider på nett:
www.treksierranevada.com
www.spanishhighs.co.uk
www.alpujarra-walking-holidays.com
www.lonelyplanet.com/spain/andalucia/las-alpujarras
www.andalucia.com/villages/alpujarras.htm
På nett:
www.walkinginfrance.info (av Jenny and Keith, dekker hele Franrike, turer 2002-2014)
www.about-france.com/tourism/long-distance-footpaths.htm (long distance footpaths, GR..)
www.wikiloc.com/trails/hiking/france (best hiking paths in France)
www.goeurope.about.com/od/france/qt/france-maps.htm (Trail and Maps for Hiking in France)
www.randoxygene.org (hiking in Alpes-Maritimes)
www.grfive.com (site for GR5)
GR52 track notes
På papir: