Narrabeen Lagoon Entrance

Narrabeen Lagoon drains to the sea through a single narrow throat under the Ocean Street bridge at North Narrabeen, and that one deep channel funnels the whole system's bait and fish in and out on every tide. Where most of the lagoon is shallow and weedy, the entrance holds genuine current, a sand-and-channel edge and depth right up against the bridge pylons — the kind of structure that flathead, bream and whiting feed along and that draws jewfish in behind the mullet schools. The lagoon opens to the ocean only when sand levels and rain allow, so the mouth swings between a flushing tidal channel and a near-closed pool, and it fishes best when it is open and running. It is one of the few Northern Beaches spots where land-based anglers can cover estuary flats, a moving channel and a near-surf entrance within a few hundred metres.

Locals work the run-out hardest at the entrance — the draining tide pulls bait off the lagoon flats and stacks flathead, bream and jewfish along the channel edge and around the bridge pylons. Whiting are the exception, fished between the Ocean Street bridge and the open mouth on the rising and full tide, then chased further up the lagoon once the tide turns and runs out. Soft plastics and blades hopped along the channel edge cover ground for flathead, while bait anglers fish lighter-weighted Hawkesbury prawns and beach worms for bream and whiting and step up to live poddy mullet or yakkas at the mouth for jewfish. Low light at dawn and dusk and the first dark hours of the run-out are the prime windows, and a touch of colour in the water after rain only helps. Berley holds bream and whiting in close along the bridge and channel.

Dusky flathead are the bread-and-butter year-round, best from spring through autumn on plastics and prawns worked along the channel edge, with the 36–70cm slot meaning the big crocs go back. Yellowfin bream and sand whiting fill out the summer through autumn run, whiting on the rising tide near the mouth and bream around the pylons and rock edges on prawn, worm and plastics. Mulloway are the headline prize — fish from low-30s schoolies to better fish hold in the entrance channel, taken on live mullet, yakkas and slab baits at night, feeding on bait pushing out of the lagoon. Luderick show through autumn and winter on green weed under a float around the North Narrabeen rock pool and bridge structure, and when the mouth is open and water cools, tailor and Australian salmon push into the entrance and the adjacent beach gutters on the turn and first of the run-out. Silver trevally and the odd school of bait-raiders round out the by-catch.

Fish the first two hours of the run-out at the entrance and you have done most of the work — that is when bait and predators line up in the channel. Pump your own nippers and gather beach worms in the North Narrabeen wash; fresh local bait outfishes anything from a packet for bream and whiting. The rule changes at the rock baths, though — from the North Narrabeen baths north around the headland to Turimetta Beach is the Narrabeen Head Aquatic Reserve, where line fishing stays legal but collecting cunjevoi, worms, nippers or shellfish does not, so keep the bait pump on the beach side of that line. The narrow channel sees boats, kayaks, swimmers and surfers near the open mouth, so keep casts tight to your own water and avoid lobbing baits across the boating line. Keep a knotless rubber net and long-nose pliers handy — flathead spikes behind the gills deliver a nasty, slow-healing jab. The lagoon draws the occasional illegal net; report anything suspicious to Fishers Watch on 1800 043 536.

Birdwood Park sits on the southern side of the Ocean Street bridge, beside the North Narrabeen Surf Club, and its car park is the standard base. Council mechanically cleared about 30,000 cubic metres of sand from both sides of the bridge over spring 2025 and announced the entrance reopened in December 2025, with the car park shut for the duration of those works. The entrance needs clearing roughly every three to five years, so another closure is only a matter of time — worth a check before you drive down. From the bridge and the park edge the water is metres away, with mostly flat, firm ground along the channel and a short walk to the open mouth and beach gutters. Toilets, a kiosk and a playground at the surf club and park make it a genuinely family-friendly session, and kids can fish off the calm channel edge near the bridge while adults work the run-out — just keep them clear of the oyster-covered rocks and the faster water at the mouth.

The entrance fishes best when it is open and flushing — after the lagoon has been mechanically cleared or punched through by rain and swell, the moving channel is what makes the spot. The first half of the run-out is the money tide for flathead, bream and jewfish; the rising and full tide near the mouth is the whiting window. A southerly or south-easterly blow pushes swell and chop into the open mouth and dirties the surf end, which can fire the entrance for salmon, tailor and jewfish but makes the rock edges sketchy. When the mouth chokes with sand and closes over, the tidal flow dies and the entrance slows right down — that is the time to move up the lagoon.

This is mostly a calm estuary spot, but the entrance has real edges. The rocks and walls around the channel and the North Narrabeen rock pool are oyster-encrusted and slippery — wear grippy footwear and watch your hands and feet. The mouth runs fast water when the lagoon is open and draining, and it sits right next to a popular surf and swimming beach, so do not wade or fish across the boating, swimming or surfing line at the throat. Boats and kayaks use the narrow channel under the bridge. Bluebottles wash up on the adjacent beach on north-easterlies, the open mouth carries unpredictable surge in swell, and full sun on the exposed flats warrants a hat and sunscreen. The lagoon is patrolled, and illegal netting turns up here from time to time. The Northern Beaches is a declared area under the NSW Rock Fishing Safety Act 2016, so fishing with rod, line or handline from naturally occurring rock exposed to ocean swell — the Narrabeen Head platform beyond the rock baths — means an appropriate lifejacket by law: adults AS 4758 level 50S or greater, under-12s level 100 or greater, with a $100 on-the-spot fine.

Yes. The entrance is a land-based spot fished from the channel edges either side of the Ocean Street bridge and from Birdwood Park on the southern side, next to the North Narrabeen Surf Club. You can cover the channel for flathead and bream, the rising tide near the mouth for whiting, and the entrance at night for jewfish, all on foot. Narrabeen Lake itself is closed to hoop and lift nets, hand-hauled prawn nets, push and scissor nets, and crab and lobster traps, and a separate schedule closes the whole lake and its tributaries to spearfishing — but none of that touches rod-and-line fishing. A NSW Recreational Fishing Fee is required to fish anywhere in NSW, salt or fresh, unless you hold an exemption.

The first half of the run-out is the prime tide for flathead, bream and jewfish, because the draining lagoon pulls bait through the channel and concentrates the fish. Whiting are the exception — fish them on the rising and full tide between the bridge and the open mouth, then move further up the lagoon once the tide turns. Dawn, dusk and the first dark hours of the run-out are the best windows.

Yes — the deep entrance channel is the local jewfish spot, and fish from schoolies to better mulloway are taken at night on live poddy mullet, yakkas and fresh slab baits as bait pushes out of the lagoon. Mulloway in NSW have a 70cm minimum size and a bag limit of one fish per person, with a boat limit of two per boat per day when two or more people are aboard, and a NSW Recreational Fishing Fee is required. Fish heavier gear here than you would for flathead, as the channel current and structure ask a lot of light line.

Dusky flathead in NSW have a slot limit of 36 to 70cm — you must release any fish under 36cm or over 70cm — with a daily bag limit of 5 and 10 in possession. The big breeders over 70cm should be lifted with a wet hand under the belly, kept horizontal and released. A NSW Recreational Fishing Fee is required, and it pays to check the current NSW DPIRD rules before keeping a fish.

It is one of the easier estuary spots to bring kids. Birdwood Park has a playground, toilets and a kiosk at the surf club, the channel edge near the bridge is calm and flat, and bream and whiting on light bait keep the action coming. Keep children clear of the oyster rocks and the faster water at the open mouth, and watch for boats and swimmers near the throat.