Sea Cliff Bridge – Sydney’s Most Scenic Coastal Drive
Sea Cliff Bridge, NSW — Everything You Need to Know Before You Visit
Sea Cliff Bridge sits on the NSW coast between the small towns of Coalcliff and Clifton, about an hour south of Sydney on Lawrence Hargrave Drive. It's one of those structures that stops you mid-drive — a curved road suspended above the ocean, hugging the base of steep sandstone cliffs, disappearing around the headland ahead of you.
Worth stopping for. Worth walking across.
Why the Bridge Was Built
The original Lawrence Hargrave Drive ran right beside the cliff between Coalcliff and Clifton — and for decades, rockfalls were a persistent problem. After particularly heavy rain, debris from the steep cliff above would drop onto the road below. The situation became critical in 2002 and the road was permanently closed.
The solution was a bridge built well away from the cliff face — up to 70 metres out in places — giving plenty of clearance should future rockslides occur. Construction began in early 2004 and the bridge opened in December 2005.
Parts of the old road are still visible at the southern end of the bridge. A rusted cream guard rail marks where the original road ran. Some of the sandstone wall that supported it has collapsed, and bush has reclaimed the rest.
Two Bridges, Not One
Most visitors don't realise there are actually two bridges here, not one.
The first, Lawrence Hargrave Bridge, is 210 metres long and easy to miss — it looks more like a section of new road than a bridge as you drive south past Coalcliff. It was built using the incremental launch method, where segments are cast in a fixed bed and pushed out progressively across the obstacle. Efficient, but not particularly dramatic to look at.
The second, Sea Cliff Bridge itself, is the one that stops people in their tracks. At 450 metres it's a balanced cantilever bridge — two arms extending in opposite directions from central supports — which allows longer spans without intermediate columns in the ocean below. This is what gives it the sweeping, uninterrupted curve that reads so well from a distance.
Is Sea Cliff Bridge Safe?
The bridge was specifically engineered to resolve the rockfall problem on the original road and is positioned well clear of the cliff face. It is a public road maintained by Transport for NSW and is structurally sound. The dramatic appearance — a road suspended above the ocean — understandably prompts the question, but the engineering is exactly what makes it safe to use.
How to Visit
Don't just drive over it. Park at the southern end where the bridge finishes, walk back across and take your time. The views from the bridge itself are the point — ocean below, dramatic sandstone cliff beside you, rock platforms visible at the water's edge, and the curve of the bridge stretching back the way you came.
The walk across and back takes around 20–30 minutes at a relaxed pace. There is no entry fee.
While You're Here
A few hundred metres further south on Lawrence Hargrave Drive, The Imperial Hotel at Clifton is worth a stop — a sympathetically restored 1911 heritage pub with ocean views, good coffee and food. It's a natural end point after the bridge walk.
Discover This Area With a Local Guide
If you enjoyed learning about places like Sea Cliff Bridge or the coastal landscapes of Royal National Park, our private tours explore these areas in depth with a local guide.
→ Book our Royal National Park Private Tour
→ Explore the South Coast & Kiama Day Tour
Sea Cliff Bridge from above — 450 metres of balanced cantilever curving between Coalcliff and Clifton on the NSW South Coast
Sea Cliff Bridge on a grey day — the curve of the structure reads just as clearly in any weather
The view from the clifftop south of the bridge — the rock platforms where the old road used to run are visible below
From the rock platform below — the bridge sits up to 70 metres from the cliff face in places
The double curve of Sea Cliff Bridge — the design follows the contour of the cliff rather than fighting it