Free tours at

Gran Telescopio Canarias

85% co-financed with European Union ERDF funds


  • Every Sunday in May 2018
  • Free transfer by bus from Santa Cruz de La Palma and Los Llanos de Aridane. Transfer by own car is not allowed.
  • Limited places, advance booking required
  • The minimum age for visiting the telescope is 6 years of age
Detailed schedule:

Maximum punctuality is strictly required.
9:15 Departure of the bus
11:00 Arrival to the Observatory and meeting with the guide. Stop at the toilets.
11:20 – 11:50 Introductory talk
12:00 – 13:00 Guided tour inside the Gran Telescopio Canarias
13:00 Departure of the bus to Los Llanos de Aridane
14:30 Arrival

8:20 Meeting with the guide (Barco de la Virgen). Maximum punctuality is strictly required.
8:30 Departure of the bus
10:00 Arrival to the Observatory. Stop at the toilets.
10:20 – 10:50 Introductory talk
11:00 – 12:00 Guided tour inside the Gran Telescopio Canarias
12:00 Departure of the bus to Santa Cruz de La Palma
13:30 Arrival

Maximum number of visitors per bus:

The maximum number of visitors per bus is 25.

Visitors age warning:

The minimum age for visiting the telescope is 6 years of age.

Is the tour free of charge?

Yes, the visit is co-financed with European Union ERDF funds. Bus transfer is included.

How to reserve:

Please, select a date in the drop-down below and fill in all the fields. As soon as we receive your booking enquiry, we will send you an email confirming your visit. Please, remember that places are limited and they will be strictly assigned by order of reception. The deadline to send the reservation is at 6pm of the day prior of the tour. For booking enquiries after the deadline, please contact us.

Cancellation policy:

The tour may be cancelled due to force majeure (for example: weather alert, maintenance service in the telescope, etc.). In case of last-minute cancellation, you will be noticed via email.

What to bring on the tour:
  • At the ORM there are no shops or vending machines to buy any water or food. We recommend you bring snacks or nuts and plenty of water or juice to avoid dehydration, due to low humidity levels at this altitud.
  • Comfortable clothes and shoes are recommended (avoid sandals and high-heeled shoes). Climatic conditions could be extreme, moreover inside the telescopes the temperature is usually cold, therefore a coat is required even in summer.
  • A cap and sun cream are recommended, especially in summer.
Visitors health:

The Astronomical Observatory is situated at 2,400 m a.s.l., consequently oxygen level is lower than the AT sea-level. For this reason, we do not recommend this tour to babies, people with anemia, heart diseases, breathing problems and people over 70.
In case of appearing symptoms of dizziness, nausea, shortness of breath or headache, please inform your guide immediately.
Medical assistance is NOT available at the ORM.
We are not responsible for any health damage as consequence of altitude or non-observance of our recommendations.

  • For your own safety, please follow your guide’s instructions all the time.
  • Maximum punctuality is strictly required. If you are late, you might lose the tour.
  • Smoking is not permitted inside the buildings and in public areas.
  • Be respectful with the environment: do not litter, please use containers provided.

We inform you that all the groups are fully booked. The reservation form will be published again in case of available places. Sorry for any inconvenience.