# ST516a Devil's Gorge detour, Bulgaria: what it is and when to go > ST516a Devil's Gorge detour is a hiking trail in Bulgaria. Interests: Hiking. The best time to visit is May to October. In June there are 15 h of daylight, and in December, 9 h. 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/bulgaria/st516a-devil-s-gorge-detour/ - Reviewed on: 2026-10-02 - Language: en ## In a nutshell - **What it is:** Hiking trail · Hiking - **Where:** Bulgaria - **Best time:** May to October. - **Nearest airport:** SOF Sofia, 139 km as the crow flies - **Website:** [sultanstrail.com](https://sultanstrail.com/) - **Trail network:** International - **Difficulty:** Easy hiking - **From:** Devil's Gorge - **To:** Yagodina - **Run by:** Sultans Trail Foundation - **Coordinates:** 41.64285, 24.32487 ## What it is and where ST516a Devil's Gorge detour is a hiking trail in Bulgaria. Stage in the Sultans Trail, a historic and cultural long-distance hiking route from Vienna to Istanbul. Its coordinates are 41.64285, 24.32487; the nearest main airport is Sofia Airport (SOF, Sofia), 139 km as the crow flies. How to get around Bulgaria (train, car, bus) is covered in [its country guide](https://kokai.app/en/paises/europa/bulgaria/#moverse). - [Where it is](https://www.google.com/maps/search/?api=1&query=41.642851%2C24.324867) - [Directions](https://www.google.com/maps/dir/?api=1&destination=41.642851%2C24.324867) - **Trail network:** International - **Difficulty:** Easy hiking - **From:** Devil's Gorge - **To:** Yagodina - **Run by:** Sultans Trail Foundation It is one of the [Hiking](https://kokai.app/en/paises/europa/bulgaria/senderismo/) places in Bulgaria. 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 ST516a Devil's Gorge detour is **May to October**. | Mes | Época | Hours of daylight | | --- | --- | --- | | January | Possible | 9 h 18 | | February | Possible | 10 h 23 | | March | Possible | 11 h 40 | | April | Possible | 13 h 08 | | May | Best time | 14 h 21 | | June | Best time | 15 h | | July | Best time | 14 h 44 | | August | Best time | 13 h 41 | | September | Best time | 12 h 16 | | October | Best time | 10 h 51 | | November | Possible | 9 h 36 | | December | Possible | 9 h | In June there are 15 h of daylight, and in December, 9 h. 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 Bulgaria in general, with its festivals and peak seasons, is in [its country guide](https://kokai.app/en/paises/europa/bulgaria/#cuando-ir). ## Before you go to Bulgaria To enter Bulgaria there are 6 things to sort out before you leave, starting with “Valid Spanish ID card (DNI) or passport”: they are all, with their deadlines, in [the Bulgaria checklist](https://kokai.app/en/paises/europa/bulgaria/#antes-de-salir). Currency: Euro (EUR) since 1 January 2026; plugs: Type C and F · 230 V · 50 Hz (the same plug as in Spain); 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 - [Yagodinska Cave](https://kokai.app/en/paises/europa/bulgaria/yagodinska-cave/): Cave in Rhodope Mountains, Bulgaria · 1.6 km - [ST516 Borino - Yagodina](https://kokai.app/en/paises/europa/bulgaria/st516-borino-yagodina/): Hiking · 1.8 km - [Kastakliy Reserve](https://kokai.app/en/paises/europa/bulgaria/kastakliy-reserve/): Protected area · 5.1 km - [Devil's Throat Cave](https://kokai.app/en/paises/europa/bulgaria/dyavolsko-gurlo/): Cave in Bulgaria · 5.5 km - [Kazanite](https://kokai.app/en/paises/europa/bulgaria/kazanite-reserve/): Nature reserve in Bulgaria · 6.4 km Distances are as the crow flies. Everything else is in [the Bulgaria guide](https://kokai.app/en/paises/europa/bulgaria/). ## More in Bulgaria: Hiking - [E3 European long distance path](https://kokai.app/en/paises/europa/bulgaria/ruta-europea-caminar-e3/): walking path - [Cherni Vrah](https://kokai.app/en/paises/europa/bulgaria/cherni-vrah/): the fourth highest mountain summit in Bulgaria - [E8 European long distance path](https://kokai.app/en/paises/europa/bulgaria/european-long-distance-path-e8-part-serbia/): European long-distance hiking trail - [Aleko, Vitosha](https://kokai.app/en/paises/europa/bulgaria/aleko-hut/): first hut on Vitosha Mountain - [Ivan Vazov hut](https://kokai.app/en/paises/europa/bulgaria/ivan-vazov-hut/): Hut in Bulgaria - [Pirin hut](https://kokai.app/en/paises/europa/bulgaria/pirin-hut/): Hut in Bulgaria Every Bulgaria place under Hiking, each with its season, is on [its page](https://kokai.app/en/paises/europa/bulgaria/senderismo/). ## Frequently asked questions ### What is ST516a Devil's Gorge detour? It is a hiking trail in Bulgaria. ### When is the best time to visit ST516a Devil's Gorge detour? May to October. In June there are 15 h of daylight, and in December, 9 h. ### How do you get to ST516a Devil's Gorge detour? The nearest main airport is Sofia Airport (SOF), 139 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=41.642851%2C24.324867) opens the route on the map, and how to get around Bulgaria is explained in [its country guide](https://kokai.app/en/paises/europa/bulgaria/#moverse). ### How do I add it to my trip? With one tap. In Kokai it is already on the Bulgaria 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 [Yagodinska Cave](https://kokai.app/en/paises/europa/bulgaria/yagodinska-cave/), [ST516 Borino - Yagodina](https://kokai.app/en/paises/europa/bulgaria/st516-borino-yagodina/), [Kastakliy Reserve](https://kokai.app/en/paises/europa/bulgaria/kastakliy-reserve/). The rest is in [the Bulgaria guide](https://kokai.app/en/paises/europa/bulgaria/). Data from [OpenStreetMap](https://www.openstreetmap.org/relation/19980105), licensed under the ODbL. More about ST516a Devil's Gorge detour on [Wikipedia](https://en.wikipedia.org/wiki/Sultans_Trail). Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).