No, not for the summit. The Telesforo Bravo route above the cable car station requires a permit, limited to a set number of hikers daily.
You can hike lower slopes and surrounding trails in Teide National Park without one, but the actual peak demands advance booking. Permits are free but competitive, so book months ahead.
⭐ Want More Tenerife Content From Us?
Add The Tenerife Forum to your Preferred Sources in Google.
Takes just a few seconds
The altitude alone makes this a serious undertaking, not a casual day trip.