Malta has very good develop bus communication, you can travel by bus through Malta. Buying 7 days ticket for 12 euro is the cheapest way to travel and visiting all placed worth to see. Sometimes you wait some time for bus, not popular line comes by 1 hours, but we were on Malta 10 days, so we have enough free time :), we did not decided to hire a car, due to left side traffic and very narrow street. Buses has usually air conditioning so sometimes it was very good solution to shelter from the sun for about an hour:) and move to another location.
The second day we have took some research through Malta, sunbathed and swam in the closest sea, then we catch the bus and moved to Cirkewwa Ferry. Cirkewwa is a place where ferries depart to the other island of Malta – Gozo. Next place when we travel was Silema. We had a dinner there and after that we went to airport catch bus to Bugibba.