Plans to build a new sea wall, gardens and cycle path at Havre des Pas have been announced.
The government says it will be Jersey's "largest coastal defences project since the 1800s".
Ministers say the seafront at the bottom of Mount Bingham is vulnerable to coastal flooding, with around 350 properties at risk.
They warn that could rise to around a thousand properties over the next 100 years unless its coastal defences are improved.
They've proposed building out between La Collette and Havre des Pas, constructing a new sea wall, reclaimed gardens and a dedicated cycle path away from the main road.

Islanders can share their thoughts on the plans in a public consultation which runs until Friday 12 September.
Those behind the project will also be holding drop-in sessions at the Havre des Pas Lido on Tuesday 22 to Thursday 24 July.
Artist's sketch of the new area created at Havre des Pas by the proposed coastal defences project

Call to remain vigilant after spate of wildfires
Third heatwave ends, but more warm weather still to come
50 people evacuated from scene of fire in Portbail-sur-Mer
Washed up paddle board sparks major sea search for two children
'Pause before paying' to avoid being scammed, islanders urged
No inflatables at some beaches after multiple people blown out to sea
Emergency response to fire on Little Sark
Police called to 'potential weapon' incident at Grouville school