# Kastakliy Reserve, Bulgaria: what it is and when to go

> Kastakliy Reserve is a protected area (Резерват Кастаклий) in Bulgaria. Interests: Nature and Wildlife. The best time to visit is May to October. In June there are 15 h of daylight, and in December, 8 h 59. 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/kastakliy-reserve/
- Reviewed on: 2026-10-02
- Language: en

## In a nutshell

- **What it is:** Protected area · Nature, Wildlife
- **Local name:** Резерват Кастаклий
- **Where:** Bulgaria
- **Best time:** May to October.
- **Nearest airport:** SOF Sofia, 135 km as the crow flies
- **Coordinates:** 41.68865, 24.32949

## What it is and where

Kastakliy Reserve is a protected area (Резерват Кастаклий) in Bulgaria.

Its coordinates are 41.68865, 24.32949; the nearest main airport is Sofia Airport (SOF, Sofia), 135 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=41.688647%2C24.329488)
- [Directions](https://www.google.com/maps/dir/?api=1&destination=41.688647%2C24.329488)

It is one of the [Nature](https://kokai.app/en/paises/europa/bulgaria/naturaleza/) and [Wildlife](https://kokai.app/en/paises/europa/bulgaria/fauna/) 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 Kastakliy Reserve 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 | 8 h 59 |

In June there are 15 h of daylight, and in December, 8 h 59. 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 | May to October | November to April |
| Wildlife | May to October | November to April |

It is not the same trip whatever you come for: Kastakliy Reserve 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 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

- [ST516 Borino -  Yagodina](https://kokai.app/en/paises/europa/bulgaria/st516-borino-yagodina/): Hiking · 3.4 km
- [ST516a Devil's Gorge detour](https://kokai.app/en/paises/europa/bulgaria/st516a-devil-s-gorge-detour/): Hiking · 5.1 km
- [Kazanite](https://kokai.app/en/paises/europa/bulgaria/kazanite-reserve/): Nature reserve in Bulgaria · 5.2 km
- [Yagodinska Cave](https://kokai.app/en/paises/europa/bulgaria/yagodinska-cave/): Cave in Rhodope Mountains, Bulgaria · 6.6 km
- [ST515 Shiroka polyana - Borino](https://kokai.app/en/paises/europa/bulgaria/st515-shiroka-polyana-borino/): Hiking · 7.6 km

Distances are as the crow flies. Everything else is in [the Bulgaria guide](https://kokai.app/en/paises/europa/bulgaria/).

## More in Bulgaria: Nature

- [Musala](https://kokai.app/en/paises/europa/bulgaria/musala/): highest mountain of the Balkans in Bulgaria
- [Pirin National Park](https://kokai.app/en/paises/europa/bulgaria/pirin-national-park/): national park in Bulgaria
- [Srebarna Nature Reserve](https://kokai.app/en/paises/europa/bulgaria/srebarna-nature-reserve/): nature reserve and biosphere reserve in Bulgaria
- [Rock-hewn Churches of Ivanovo](https://kokai.app/en/paises/europa/bulgaria/iglesias-rupestres-de-ivanovo/): UNESCO World Heritage Site in Ruse Province, Bulgaria
- [Thracian Tomb of Sveshtari](https://kokai.app/en/paises/europa/bulgaria/thracian-tomb-of-sveshtari/): tomb in Bulgaria
- [Rila National Park](https://kokai.app/en/paises/europa/bulgaria/national-park-rila/): national park in Bulgaria

Every Bulgaria place under Nature, each with its season, is on [its page](https://kokai.app/en/paises/europa/bulgaria/naturaleza/).

## Frequently asked questions

### What is Kastakliy Reserve?

It is a protected area (Резерват Кастаклий in the local language) in Bulgaria.

### When is the best time to visit Kastakliy Reserve?

May to October. In June there are 15 h of daylight, and in December, 8 h 59.

### How do you get to Kastakliy Reserve?

The nearest main airport is Sofia Airport (SOF), 135 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=41.688647%2C24.329488) 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 [ST516 Borino -  Yagodina](https://kokai.app/en/paises/europa/bulgaria/st516-borino-yagodina/), [ST516a Devil's Gorge detour](https://kokai.app/en/paises/europa/bulgaria/st516a-devil-s-gorge-detour/), [Kazanite](https://kokai.app/en/paises/europa/bulgaria/kazanite-reserve/). The rest is in [the Bulgaria guide](https://kokai.app/en/paises/europa/bulgaria/).

Data from [OpenStreetMap](https://www.openstreetmap.org/relation/4264984), 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).