How to get to Teide Cable Car upper station on foot from the Refugio Altavista lodging?

This photograph illustrates the intersection between the trail leading to the Refugio Altavista lodging (this trail is located in the center of photograph) and the 'Route 11' trail, which leads to the Mirador La Fortaleza observation deck (this trail is located at the bottom of photograph). So, the Refugio Altavista lodging connects to Teide Cable Car upper station through this intersection.