I've made changes according to your suggestions. But now I have a doubt about the proper Slovak declination. In description found at nearby well there is "v Haji", but on the page http://www.obecjarabina.sk/-kaplnka-v-haju "v Haju".

Yes, but it was a point, I added the area.
The name I found in the neighbouring Marianska studnicka. It is also described at page http://www.obecjarabina.sk/ as: Kaplnka Zosnutia Presvätej Bohorodičky na
hôrke Háj

Wg mnie nie jest potrzebny. Punkt powstał, prawdopodobnie dlatego, iż jest tam tabliczka z granicą rezerwatu.