Useful web sites
The Island tourism site is very comprehensive and informative and is in English - http://www.lagomera.travel/en/default.aspx
Valle Gran Rey has its own tourism website, with lots of photographs and local information including details of the local weather - www.vallegranrey.es/turismo
Garajonay National Park This park is a Unelco World Heritage Site. There is an interesting Visitors Centre at Juego de Bolas, see signs from La Laguna Grande on the main road GM2 which runs through the middle of the island.
Ferry Companies :
Naviera Armas (www.navieraarmas.com)
Fred Olsen (www.fredolsen.es)