# Observatorio de fauna, Spain: what it is and when to go > Observatorio de fauna is an observatory in Spain (Trescasas/Palazuelos de Eresma). Interests: Nature and Stargazing. The best time to visit is April to June and September to October. In June there are 14 h 55 of daylight, and in December, 9 h 05. 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/observatorio-de-fauna/ - Reviewed on: 2026-10-02 - Language: en ## In a nutshell - **What it is:** Observatory · Nature, Stargazing - **Where:** Spain · 40109, Balsaín - **Best time:** April to June and September to October. - **Nearest airport:** MAD Madrid, 55 km as the crow flies - **Run by:** Patronato del Parque Nacional de la Sierra de Guadarrama - **Coordinates:** 40.84556, -4.0268 ## What it is and where Observatorio de fauna is an observatory in Spain (Trescasas/Palazuelos de Eresma). It is in [Trescasas/Palazuelos de Eresma](https://kokai.app/en/paises/europa/espana/trescasas-palazuelos-de-eresma/), where this site lists 90 more places to see, 10 km from the centre. Its coordinates are 40.84556, -4.0268; the nearest main airport is Adolfo Suárez Madrid–Barajas Airport (MAD, Madrid), 55 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=40.845564%2C-4.026803) - [Directions](https://www.google.com/maps/dir/?api=1&destination=40.845564%2C-4.026803) - **Run by:** Patronato del Parque Nacional de la Sierra de Guadarrama It is one of the [Nature](https://kokai.app/en/paises/europa/espana/naturaleza/) and [Stargazing](https://kokai.app/en/paises/europa/espana/estrellas/) 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 Observatorio de fauna is **April to June and September to October**. | Mes | Época | Hours of daylight | | --- | --- | --- | | January | Possible | 9 h 23 | | February | Possible | 10 h 26 | | March | Possible | 11 h 40 | | April | Best time | 13 h 06 | | May | Best time | 14 h 17 | | June | Best time | 14 h 55 | | July | Possible | 14 h 39 | | August | Possible | 13 h 38 | | September | Best time | 12 h 15 | | October | Best time | 10 h 53 | | November | Possible | 9 h 40 | | December | Possible | 9 h 05 | In June there are 14 h 55 of daylight, and in December, 9 h 05. 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. | What you come for | Best time | Possible | | --- | --- | --- | | Nature | April to June and September to October | November to March and July to August | | Stargazing | — | November to March | It is not the same trip whatever you come for: Observatorio de fauna has a different season depending on what you want to do here, and [Kokai](https://kokai.app/en/) puts it in the right month for you. 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 - [Poza de Los Baños de Venus](https://kokai.app/en/paises/europa/espana/poza-de-los-banos-de-venus/): Hot spring bath · 2.2 km - [Zona de baño del Cañito de Don Pedro](https://kokai.app/en/paises/europa/espana/zona-de-bano-del-canito-de-don-pedro/): Hot spring bath · 2.7 km - [Refugio de la Camorca](https://kokai.app/en/paises/europa/espana/refugio-de-la-camorca/): Mountains · Hiking · 3.1 km - [Refugio de la Peña Cítores](https://kokai.app/en/paises/europa/espana/refugio-de-la-pena-citores/): Mountains · Hiking · 3.2 km - [Cueva del Monje](https://kokai.app/en/paises/europa/espana/cueva-del-monje/): Cave in Balsaín, Segovia · 3.5 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 Observatorio de fauna? It is an observatory in Spain. ### When is the best time to visit Observatorio de fauna? April to June and September to October. In June there are 14 h 55 of daylight, and in December, 9 h 05. ### How do you get to Observatorio de fauna? The nearest main airport is Adolfo Suárez Madrid–Barajas Airport (MAD), 55 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=40.845564%2C-4.026803) 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 [Poza de Los Baños de Venus](https://kokai.app/en/paises/europa/espana/poza-de-los-banos-de-venus/), [Zona de baño del Cañito de Don Pedro](https://kokai.app/en/paises/europa/espana/zona-de-bano-del-canito-de-don-pedro/), [Refugio de la Camorca](https://kokai.app/en/paises/europa/espana/refugio-de-la-camorca/). The rest is in [the Spain guide](https://kokai.app/en/paises/europa/espana/). Data from [OpenStreetMap](https://www.openstreetmap.org/way/1237573691), licensed under the ODbL, and from [Wikidata](https://www.wikidata.org/), CC0. Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).