Sentosa Island plans coastal protection against rising sea levels

Sentosa, a popular resort island in Singapore, is facing challenges from climate change. Experts warn that rising sea levels could affect its famous 16-kilometer coastline in the coming decades. The beachfront, which includes attractions, eateries, and beach clubs, spans about 2 kilometers and is particularly vulnerable. To combat these issues, the government plans to start studies next year to explore coastal protection solutions for Sentosa and nearby areas. Experts suggest several methods to safeguard the island, including installing artificial coral reefs, building barrages, and replenishing beach sand. Artificial coral reefs could serve as barriers to break up large waves during storms, preventing beach erosion. Barrages could be used between islets, allowing adaptation to changing tide levels. Replenishing sand on beaches would help raise them to match rising sea levels. Different areas of Sentosa require tailored solutions. The marina in Sentosa Cove, for example, needs to maintain a safe passage for boats. Experts recommend elevating land levels around the marina for better flood resilience and converting fixed pontoons to floating ones to adapt to water level changes. However, Singapore's limited sea space raises concerns. As a global shipping hub, any coastal protection measures must not interfere with shipping routes. The Sentosa Development Corporation will conduct a site-specific study starting in 2026 to investigate these issues further and assess the economic and environmental costs involved.