Walk around Comino.
Wonderful scenary, I recommend going in spirng or autumn. Some of the caves (Santa Maria Caves) are even accessible by foot, as seen in the photos. The access site is quite hidden, but you'll see it if you follow the route.
Phone the Comino Ferry co-op (link below) if doing this in low season, to check if their operating. Ferries stop if weather is not good.
Tips, hints and linkshttp://www.cominoferries.com/
33S 439075 3985731
For changing the range of view, push the arrows together.