I'm in Malta right now - and Hagar Qim and Mnajdra are closed "for the forseeable future" and many of the other sites I've researched have extremely limited opening hours (as in 1½ hours a week) or are closed for excavations, and will be for months. Leaving the hypogeum, Tarxien temples, and Bigibba as visitable - so if you want to visit more places, I'd choose a different island at the moment. That said, I'm having fun!
Sals x