Mali Skolj is one of the tiny uninhabited islets in the bay near Neum. It is more a landmark than a destination: a low piece of rock that helps make sense of the sheltered water between the town, the Klek Peninsula, and the edge of the Bay of Mali Ston.
Do not plan a trip around it. Notice it from the water or from the road, especially if you are interested in the odd details of Bosnia and Herzegovina's coastline. Together with Veliki Skolj, it gives the country its small claim to Adriatic islands.