I haven't heard of any Marinas there (which may mean it will be less expensive than what is being charged elsewhere in the Med.) Here are a couple of Google Earth shots of the 2 main anchorages, seem to be well protected from all winds except strong SSW's., Could be hot and dusty.
There is some sort of piers/pontoons -- green arrow
which could be a small marina?
Lets see if anyone has visited there recently
Elsewhere, you mention lightweight Cat -- What design? what weight ?? You might need a bigger anchor ??