I have not been to St Kilda pier since the new boardwalk was built but I used Grok AI and this is the instructions.
Where to Stand (Map + Step-by-Step)
Public Viewing Zone (No Ticket Needed)
Location: Breakwater rocks & promenade beyond the locked platform gate
Distance from tram stop: 5 min walk from Stop 136 (Alfred Square)
Best spot: The rocks just past the “Penguin Viewing Area – No Entry” sign
From CBD: Take Tram 96 south from Swanston St (e.g., Bourke St Mall) – 25 min ride, free in Zone 1. Alight at Stop 136 (Alfred Square / The Esplanade).
Walk to Pier: Head east along The Esplanade (beachfront path) for ~400m / 5 min – pass the yacht club and pier entrance.
To Viewing Spot: Walk to the end of the pier (500m more, 7-10 min). After the locked gate/platform (signs say "No Entry – Ticket Holders Only"), veer right onto the public rocks/promenade along the breakwater. That's your gold spot—penguins haul out 15-60 min after sunset, often 2-5m away!
https://maps.app.goo.gl/k899nNAtSBjGqSVx9
Note: the tram is not free to St Kilda. You will need to tap on/off your Myki card
Note2: If your google map shows the middle of the water, change to "satellite view" and you can see the pathway and marina