 The main factors causing vulnerability include beach erosion, a poor recovery rate of coral reef flats, hydrodynamic conditions, and urbanisation, which puts pressure on the soil and aggravates coastal erosion, degrades the landscape, and generates pollution.The reef areas near the dock at Pirogue and St-Pierre Ville are suffering irreversible deterioration due to increasing development.The Marine Nature Reserve, created in 2007, plays a role in protecting the reef.