Not all of them make it. The vessels aren't particularly seaworthy, and they're not allowed to dock, so effectively they dump their passengers in open boats and rely on the coastguard rescuing them and taking them to Italian soil.
Not all of them make it. The vessels aren't particularly seaworthy, and they're not allowed to dock, so effectively they dump their passengers in open boats and rely on the coastguard rescuing them and taking them to Italian soil.