Cave training cannot be done in malta. Cavern can, but even for intro, the 'caves' are too small. Malta has a lot of caverns, caves called for recreational divers, but it are no real caves . In Billinghurstcave, there is a line, and a T, but you are mostly in daylightzone. The total length is too small to ever reach any turnpressure, the max length you dont see daylight is maybe 200m. It is extremely wide, you cannot see the walls on both sides at once. So yes it is nice, but not a cave to teach intro or c1 in. It is just a big big chamber at the end.Since you are in Europe, are you thinking of doing your cave training in Malta? It looks like John Kendall covers that area. I'll probably do my cave training in Malta before I make the move back to Europe.
In Mgarr ix ini are seacaves, yes in one you dont see daylight anymore, it goes up to air. But here it is quite narrow and to do any skill in the notdaylightzone the instructor cannot move around from backt to front or front to back and in a few minutes you are in open water again.
I know there are cavern and cave courses teached, but then you are not prepared for real caves in my eyes. Cavern yes, intro and cave no. I know that even full cave is teached in Malta, but then for sure you are not prepared.