Waterside is a direct and easy 25-minute drive from the CBD. There is ample free parking nearby at Hart’s Mill.
Route 150, Stop 41 lets you out at the British Hotel on the corner of Nile Street. Timetable here: https://www.adelaidemetro.com.au/routes/150
Routes 117, 118, 230, 232, 252, 254, and 254X also stop in Port Adelaide – for more details visit: https://www.adelaidemetro.com.au/timetables/buses
The Outer Harbour line, Ethelton station lets you out with a 10 minute walk to Waterside.
View the train timetable here: https://www.adelaidemetro.com.au/routes/OUTHA
Taxi fare is approx $50 to the Adelaide CBD.