 The first cone was immersed on 6 June 1784, and the King attended the on 22 June.But the technique did not withstand storms, and it was abandoned in 1788 in favour of scuttling of old warships and a rockfill to lost stones that had been touted by La Bretonnière.However, the reduction of subsidies and the revolutionary events slowed work down, until its suspension in 1792.