# Grotte Casteret, Spain: what it is and when to go > Grotte Casteret is a cave in Fanlo, Aragon, Spain. Interests: Nature. The best time to visit is April to June and September to October. In June there are 15 h 07 of daylight, and in December, 8 h 53. It has articles in 9 Wikipedias, so it is not one of the busiest places in Spain: one to enjoy at a calmer pace. Here is what it is, where it lies, when to come, how to get there and what else is nearby to turn it into a trip. - Address: https://kokai.app/en/paises/europa/espana/gruta-casteret/ - Reviewed on: 2026-10-02 - Language: en ## In a nutshell - **What it is:** Cave in Fanlo, Aragon, Spain · Nature - **Where:** Spain - **Best time:** April to June and September to October. - **Nearest airport:** BCN Barcelona, 233 km as the crow flies - **Website:** [info.igme.es](http://info.igme.es/ielig/LIGInfo.aspx?codigo=ARP022) - **Coordinates:** 42.68185, -0.02997 ## What it is and where Grotte Casteret is a cave in Fanlo, Aragon, Spain. It has articles in 9 Wikipedias, so it is not one of the busiest places in Spain: one to enjoy at a calmer pace. La cueva helada de Casteret se sitúa en pleno corazón del macizo de Monte Perdido, en la vertiente occidental del Pico Anónimo (2.773 m). La presencia de cuevas con hielo en su interior es una de las particularidades más interesantes del Parque Nacional. It is in [Fanlo](https://kokai.app/en/paises/europa/espana/fanlo/), where this site lists 62 more places to see, 4.2 km from the centre. Its coordinates are 42.68185, -0.02997; the nearest main airport is Josep Tarradellas Barcelona-El Prat Airport (BCN, Barcelona), 233 km as the crow flies. How to get around Spain (train, car, bus) is covered in [its country guide](https://kokai.app/en/paises/europa/espana/#moverse). - [Where it is](https://www.google.com/maps/search/?api=1&query=42.681848%2C-0.029966) - [Directions](https://www.google.com/maps/dir/?api=1&destination=42.681848%2C-0.029966) It is one of the [Nature](https://kokai.app/en/paises/europa/espana/naturaleza/) places in Spain. In [Kokai](https://kokai.app/en/) it is already on your trip map next to the places you save yourself, and it goes into a day's plan with one tap. ## When to go The best time to visit Grotte Casteret is **April to June and September to October**. | Mes | Época | Hours of daylight | | --- | --- | --- | | January | Possible | 9 h 12 | | February | Possible | 10 h 19 | | March | Possible | 11 h 39 | | April | Best time | 13 h 10 | | May | Best time | 14 h 26 | | June | Best time | 15 h 07 | | July | Possible | 14 h 50 | | August | Possible | 13 h 45 | | September | Best time | 12 h 16 | | October | Best time | 10 h 48 | | November | Possible | 9 h 31 | | December | Possible | 8 h 53 | In June there are 15 h 07 of daylight, and in December, 8 h 53. Daylight hours are calculated from the site's latitude for the 15th of each month; when planning a full day on foot they matter as much as the weather. When to go to Spain in general, with its festivals and peak seasons, is in [its country guide](https://kokai.app/en/paises/europa/espana/#cuando-ir). ## Before you go to Spain To enter Spain there are 6 things to sort out before you leave, starting with “Valid ID card or passport”: they are all, with their deadlines, in [the Spain checklist](https://kokai.app/en/paises/europa/espana/#antes-de-salir). Currency: Euro (EUR); plugs: Type C and F · 230 V · 50 Hz; emergencies: 112. In [Kokai](https://kokai.app/en/) you tick off the checklist inside your trip, and each item reminds you when it is time to do it. ## What is nearby - [Casque du Marboré](https://kokai.app/en/paises/europa/espana/el-casco/): Mountain in France · 710 m - [Tour du Marboré](https://kokai.app/en/paises/europa/espana/la-torre-de-marbore/): Mountain in France · 1.1 km - [Pointe Bazillac](https://kokai.app/en/paises/europa/espana/pointe-bazillac/): Mountain in France · 1.3 km - [Taillon Glacier](https://kokai.app/en/paises/europa/espana/glacier-du-taillon/): Glacier in the Pyrenees in France · 1.6 km - [Pic du Taillon](https://kokai.app/en/paises/europa/espana/tallon/): Mountain in France · 2.2 km Distances are as the crow flies. Everything else is in [the Spain guide](https://kokai.app/en/paises/europa/espana/). ## More in Spain: Nature - [Teide](https://kokai.app/en/paises/europa/espana/teide/): volcano on Tenerife in the Canary Islands - [Province of Ávila](https://kokai.app/en/paises/europa/espana/el-cabezo/): province in Castile and León, Spain - [Cave of Altamira](https://kokai.app/en/paises/europa/espana/cueva-de-altamira/): cave with prehistoric paintings in Spain - [Teide National Park](https://kokai.app/en/paises/europa/espana/parque-nacional-del-teide/): National Park in Tenerife, Spain - [Park Güell](https://kokai.app/en/paises/europa/espana/parque-guell/): public park system in Barcelona, Spain - [Aneto](https://kokai.app/en/paises/europa/espana/pico-aneto/): highest mountain of the Pyrenees Every Spain place under Nature, each with its season, is on [its page](https://kokai.app/en/paises/europa/espana/naturaleza/). ## Frequently asked questions ### What is Grotte Casteret? It is a cave in Fanlo, Aragon, Spain. It has articles in 9 Wikipedias, so it is not one of the busiest places in Spain: one to enjoy at a calmer pace. ### When is the best time to visit Grotte Casteret? April to June and September to October. In June there are 15 h 07 of daylight, and in December, 8 h 53. ### How do you get to Grotte Casteret? The nearest main airport is Josep Tarradellas Barcelona-El Prat Airport (BCN), 233 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=42.681848%2C-0.029966) opens the route on the map, and how to get around Spain is explained in [its country guide](https://kokai.app/en/paises/europa/espana/#moverse). ### How do I add it to my trip? With one tap. In Kokai it is already on the Spain map, next to the places you save yourself: add it to a day's plan, give it a time and, if you like, get a reminder when you pass nearby. ### What else is around here? Nearby you have [Casque du Marboré](https://kokai.app/en/paises/europa/espana/el-casco/), [Tour du Marboré](https://kokai.app/en/paises/europa/espana/la-torre-de-marbore/), [Pointe Bazillac](https://kokai.app/en/paises/europa/espana/pointe-bazillac/). The rest is in [the Spain guide](https://kokai.app/en/paises/europa/espana/). Data from [OpenStreetMap](https://www.openstreetmap.org/node/3306257763), licensed under the ODbL, and from [Wikidata](https://www.wikidata.org/wiki/Q2968640), CC0. More about Grotte Casteret on [Wikipedia](https://es.wikipedia.org/wiki/Gruta_de_Casteret). Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).