Boat Launch Ramp No. 3 is the third of three concrete ramps at the Patterson River facility in Carrum, Victoria, which together form one of the state's busiest boat-launching complexes with direct access to Port Phillip Bay.

This ramp features three lanes and includes a small pontoon for mooring activities, making it a practical option for recreational boaters and anglers.

The broader Patterson River Launching Way facility has seen recent upgrades including additional multi-lane ramps, a new parking area, retaining walls, and a gangway with floating pontoon.