Reason #132: get yourself a sinkhole and plant a crop
Deserts have their oases and karst topography has sinkholes where fertile soil is found. Soil is otherwise scarce on Brač, as it’s mostly made of limestone.
If your land plot has one, you’re lucky because you don’t have to dig up too many rocks to find soil. And the soil found in sinkholes is usually very fertile, too.
To give you a bigger picture, a large part of Croatia is made up of karst topography. The most notable area is Plitvice Lakes, a National park that’s on the UNESCO Heritage listing for this particular reason.