Not after this: https://www.theguardian.com/law/2016/jan/17/briton-fights-ex...
I won't summarize that article, since it's all quite clear as long as you read to the end. The upshot is, that anyone diving in Malta is subject to bizarre legal risk if something goes wrong. It's a bit like stopping to help at an accident, and then being charged with causing it!
The whole thing raised a massive stink amongst BSAC divers, since it seemed (at one point) that BSAC insurance wouldn't support him. I think he's still 6 figures out of pocket.
TL/DR: do not dive in Malta.