Take bus 18 between Ama Temple and Macau Tower. I suggest you take free shuttle bus from Macau Ferry Terminal to Hotel Lisboa and get around to see the Senado Sqaure, Ruins of St. Paul's Church. Take bus 11 at the bus terminus beside Senado Square to Ama Temple. Then to Macau Tower. If you still have time at night, you can go to Taipa, to see Venetain and City of Dreams.