There is more than one Otok. My family is from the one west of Vinica. It is usually not listed on a map as it is such a small settlement right on the river. If you go on google maps you will find it by searching for Vukovci, Crnomelj, Slovenia. I think Otok is now part of Vukovci, located just East of Kot/Severin. We traveled there this past May.......It is beautiful!