Arboretum of Isso Nature · Hellín, Campos de Hellín, Albacete Image of Hellín, not of the place itself. A botanical garden located in the hamlet of Isso, considered one of the most notable in Castilla-La Mancha. It holds a broad collection of tree species beside the river Mundo, with more than 200 species of trees and shrubs from various parts of the world. School visits from the area are regularly organised to teach children about the natural environment. Photo: Luis Rogelio HM (CC BY-SA 2.0) What to see and do in Hellín