Some 100,000 tickets will be available on the official website from November 28.
The open period extends through February, March, April and May and is designed to meet the growing demand.
Some 1,100 people are expected to visit the site each day.
The tickets are being kept at the same price, with general passes costing €10 and visits with a specialized guide costing €18.
Guided tours are now conducted in both Spanish and English as more than 65% of the visitors are foreigners.
“We have a special demand for guided tours, so every day there are four daily groups and on the weekend we get up to six guided passes a day,” explains Francisco Campano, head of the management company.
The guided tours aim to explain the history and nature of what was the most dangerous path in the world in small groups of 25 people with a specialized guide who, through a radio guide, tell visitors anecdotes and stories.