PNT 24 Portillo Alto Trail

PNT 24 Portillo Alto Trail is a 0.91-mile (1.46 km) point-to-point walk from Portillo Alto to PNT 01 La Fortaleza near Roque del Peral, crossing PNT 06 Montaña de los Tomillos. The park describes broad views across northern Teide for most of the route. Allow 35 to 40 minutes one way; it's a short high-country walk, not a summit hike, and you’ll need a plan for the return.

The mapped line starts with a brief gravel access lane beside the Portillo Alto settlement, then follows a gravel hiking path to PNT 01. It rises about 21 m and drops about 82 m, between roughly 2,065 and 2,127 m (about 6,775 to 6,980 ft). The park rates it low difficulty. To finish back at the TF-21 start, retrace PNT 24 for about 1.82 miles total; that makes an out-and-back, not a loop.

Start at Portillo Alto beside TF-21. Published directions place the settlement around km 33 to 34, so use the mapped access rather than relying on one kilometer marker. Some parking is available nearby, and bus routes 342 and 343 serve the Portillo Alto stop; check current service before relying on transit. The route ends where it joins PNT 01, away from the starting access. Park access is free without a reservation.