The bottom is composed of sand with patches of Posidonia. To the South of the island, shallow water regions can be found with depth ranging from 6 metres to 40 metres.
Because Filfla was used as a shooting target by the British Army in World War II, remains of ammunition as well as empty shells are to be found all over the island. Under no circumstances should the diver handle these devices. Furthermore, a strong surface current in a southeasterly direction is present on the west side and sometimes also on the north side of the island.
10 - 30 metres. The water is very clear.
To dive here you need the permission of the Malta Maritime Authorities. Then take a bearing following the drop-off and the wall. You are likely to see some shoals of barracuda and possibly even a shark in these waters. You may also see large groupers and moray eels too. Always take care with your buoyancy... do not forget the explosives. Better to be accompanied by somebody who knows the site.
Giant Stride entry.