I am Anshumath Darshana (Darsha), living in historical city, capital of southern. that is called Galle. I have my experience about 8 years. on tourism.
3 day tours. Starting from the airport drive up to kandy. Second day drive down towards sigiriya rock fortress, dambulla golden temple. Spend the night around sigiriya. Third day come back to the air port.
4 day tours. Starting from the airport drive up to kandy, Second day polonnaruwa, sigiriya, Third day dambulla temple and drive up to negombo.
5 day tours. First day galle, Second day yala. Third day yala safari, fourthday. Come back to hickaduwa or bentota. Fifth day colombo city tour, and drop to negombo.
Tours can be arranged according to the days of spendig.