From the West Tamaki Road entrance, turn left past the observation shelter, then follow the boardwalk. Enter the woodland above the willow pond where fantails dart around.
You will pass the Christine Barfoot Memorial seat.
A short distance further steps lead up to the godwit lookout, which provides excellent views of the lagoon and meadow.
The walk soon divides into the upper and lower tracks. Take the lefthand turn or upper bush track and continue up through bush to the Sylvia Reed Memorial seat, which is an excellent spot to observe birds in the lagoon and on the sandspit.
The track continues through mānuka and kānuka to a small ponga grove then crosses a stream before rising to the sandspit lookout. This has spectacular views of the entire reserve, especially to the fish dam and sandspit beach, as well as the estuary mouth and Musick Point.
From the lookout, go down the steps to rejoin the lower bush track.
A short walk alongside the fish dam will take you out to the sandspit beach before returning along this track. Circle around a swamp on the boardwalk and cross a small stream before entering denser bush alongside another swamp.
At the turn-off to the fish dam causeway, continue straight ahead along a boardwalk which curves around young kahikatea and cabbage trees.
Passing the junction of the upper track, return to the West Tamaki Road carpark.