Technical information Start: La Caldera Finish: El Portillo Approval status: In progress Degree of difficulty: Intermediate Type of trail: Linear Distance: 13.1 km (12.89 ft) Duration: 5 hours 40 mins Highest altitude: 2,033 m (12.89 ft) Lowest altitude: 944 m (12.89 ft) Elevation gain: 1,187.50 m (12.89 ft) Elevation loss: 347.49 m (12.89 ft) Links to other trails: GR 131 Anaga - Chasna. Stretch: La Esperanza - La Caldera Recreation Area GR 131 Anaga - Chasna. Stretch: El Portillo - Degollada de Guajara PR TF 35 Mamio - Pinolere SL TF 81 Camino La Orilla del Monte Protected Nature Areas: Corona Forestal Natural Park Teide National Park Authorisation required: No Trail description The journey begins by taking the footpath that sets off from the car park by the Recreation Area of La Caldera. Follow that footpath until it merges with the SL-TF 81 Camino de La Orilla del Monte and carry on through a dense pine forest. Once you come to Cruz del Dornajito, the trail will guide you along stretches of a track to reach the old Royal Pathway of Chasna, which travels upwards to the El Portillo crossroads. There, you will find the El Portillo Visitors Centre, which lies inside Teide National Park. Hypsometry For your own safety, don't forget to check the condition of the trail. The competent authority will be responsible for informing you if the trail is not recommendable in the wake of adverse weather conditions, as well as if the trail or part of it is closed, etc. Competent authority: Tenerife Council About the competent authority: GR 131 Anaga - Chasna. Stretch: La Caldera Recreation Area - El Portillo In case of an emergency, call 112. Download FRESS 112, available for iOS and Android