JIMENA (Agencies) It is all too easy to get lost in the cork forest of Los Alcornocales Nature Park, as a group of supposedly experienced walkers learned last weekend. Officers from the GC post at Jimena were alerted by a mobile phone call to the station, coming from the walkers themselves. They were lost, but thanks to the GC's exacting knowledge of the area, they were able to recognize some indicators. Having taken off for a long walk into the forest, they were now at a place known locally as Majada del Lobo. The search was on and the visitors were finally located and brought into the village safe and sound. This is hardly the first time this has happened in the park, and fortunately there are no injuries or worse to report. The Guardia Civil advises, though, that walking in these hills can be a risky business, however leisurely it may appear, so it is not a good idea to set out without excellent knowledge of the forest or without taking a guide.