there is an island next to migingo a couple of metres away....actually a stone-throw distance. EB is best suited here.
the fishermen can always trade in migingo and deposit their money in the neghbouring island.....very simple!!!
NEVER TALK OF A RHINO IF THERE IS NO TREE NEAREBY - ZULU PROVERB
...besides, the presence of a safe alone does not signify that there is money inside...