Hi we spent 5 days in Malta in May and I booked ahead for the Hypogeum. Now friends are going in June and of course it is completely booked. I read here on the forum recently that there is an office (not apparently the Hypogeum itself) that distributes tickets of cancellations. Perhaps someone knows about this. Perhaps the person who originally posted it. It seems such an outstanding part of Malta's heritage and helps put into perspective the the 20 plus temples above ground.