The Principality of Monaco has embarked on a nine million euro project to bolster the protection of Larvotto Beach against the escalating challenges posed by severe storms and coastal erosion. Despite the redesign of Larvotto in 2021, which introduced features like a seawall, cofferdams, raised shopfronts, and underwater geotubes, these measures have proved insufficient in the face of increasingly frequent and intense Mediterranean storms. Repeated damage, such as the destruction of the Miami Beach terrace, has underscored the urgency of enhanced defences.
The substantial investment aims to secure the coastline and mitigate erosion through a two-phase plan led by the Monegasque company Trasomar. The first phase began on January 13 on the Méridien side of the beach and is scheduled to conclude by late April. The second phase, targeting the Grimaldi Forum side, will commence in October after the summer season and will be completed by December.
Central to the project are two rock islands, each measuring 30 meters in length, 10 meters in width, and standing one meter above sea level, which will replace the existing geotubes. Additionally, the central breakwater will be divided to enhance water oxygenation in the cove. Should these measures prove effective, the government may proceed with a third phase to replace elements of the historic breakwater with additional rock islands.
Renzo Piano, the esteemed architect behind the 2021 Larvotto re-qualification, has contributed to the design of these long-lasting structures, which are expected to endure for 100 years—significantly exceeding the 30-year lifespan of the geotubes.
While fortifying Larvotto Beach, the project prioritises environmental preservation. Measures include transplanting vulnerable marine species, monitoring underwater acoustics to protect cetaceans, and safeguarding the Posidonia seagrass. Construction activities are confined within a floating barrier to minimise sediment disruption, with work paused during adverse weather conditions to prevent ecological damage.
An appointed ecologist will oversee the implementation of these measures and monitor the site’s environmental health for a decade following the project’s completion. The nine million euro investment reflects Monaco’s commitment to balancing ecological responsibility with the protection of its iconic coastline, ensuring that Larvotto Beach remains a safe and vibrant destination for residents and visitors alike.