You can get there on foot in the path of the two public elevators for access to the Castle of St. Jorge from downtown:
1st. Lift is located in the Fanqueiros Street nr. 170 -178, go for the last floor. On your way out of the 1st. Lift ,you must follow the directions to the "Pingo Doce" (market) on your left then turn right on the square, you will see the "Pingo Doce" entrance, the 2nd Lift is inside the market, go for the last floor, at the exit of the lift take a left and you're there.
Lifts schedules: 9am to 9pm.