Salines Beach, a popular destination for over a million visitors annually (Ref 9), is facing severe erosion due to rising sea levels and poor coastal management. Since 1995, the beach has lost more than 20 meters in width. This loss has been worsened by vehicle traffic and the introduction of coconut trees in the 1950s, which reduced the native root systems that once helped to stabilize the coast (Ref 5). Now, the encroaching sea threatens to swallow the road that runs along the beach. In response, the Salines Conservation Committee—comprised of concerned community members and environmental groups—has been advocating for urgent action to halt the erosion. They have called for a renaturalization of the area through the replanting of endemic species and restrictions on car traffic, both aimed at restoring the beach’s natural resilience. When part of the road collapsed in July 2022, the committee took immediate action, organizing community-based interventions. These efforts included blocking traffic, raising public awareness, and planting over 60 endemic plants in the damaged area. The aim was to reestablish a root network capable of anchoring the coastline and capturing shifting sands (Ref 1; 2). The intervention was described as "a response to the urgent need to rebuild the root network, an ecological engineering solution recognized as the most effective method for retaining beach sand and slowing coastal erosion" (Ref 2; 1). The intervention on this section of the coast was first completed, then discarded by the municipality of Sainte-Anne (Ref 2). Regional and National agencies are currently undertaking the restoration works but it is unclear the stage of completion (See Ref 3).
Overview
Nature-based solution
- Blue infrastructure
- Coastlines
Key challenges
- Climate action for adaptation, resilience and mitigation (SDG 13)
- Climate change adaptation
- Coastal resilience and marine protection (SDG 14)
- Coastal protection / hazard mitigation
- Green space, habitats and biodiversity (SDG 15)
- Habitat and biodiversity restoration
- Water management (SDG 6)
- Flood protection
- Cultural heritage and cultural diversity
- Preservation of natural heritage
- Economic development and employment (SDG 8)
- Tourism support
Principal problems in Functional Urban Area (FUA)
- Climate-Related Hazards
- Coastal hazards (e.g. erosion, flooding)
- Sea level rise
- Extreme weather events (e.g. storms, hurricanes)
- Land use and Socio-economic change
- Economic losses due to disasters and environmental degradation
- Resource Scarcity and Competition
- Over-exploitation of natural resources (water resources, overgrazing, fisheries, mangroves, fore products)
Key priorities
Focus
Project objectives
Implementation activities
Climate-focused activities
Climate change adaptation:
- Implement measures that prevent/manage desertification, soil erosion and landslides
- Restore sediment supply to coastal zone
- Protect and restore coastal ecosystems, to address loss of land and livelihoods, due to rising sea levels
Specification of climate or environmentally vulnerable communities
Biodiversity conservation or restoration-focused activities
Biodiversity restoration:
- Rehabilitate and restore damaged or destroyed ecosystems
- Restore species (native, endangered, or unspecified)
- Restore native species
- Restore valued species
- Restore endangered species
- Public engagement
Main beneficiaries
- Citizens or community groups
- Other
Governance
Management set-up
- Co-governance with government and non-government actors
Type of initiating organisation
- Non-government organisation/civil society
- Citizens or community group
Participatory approaches/ community involvement
- The project didn't involve any form of stakeholder participatory activities
Details on the roles of the organisations involved in the project
Project implemented in response to ...
Type of enablers
Financing
Total cost
Source(s) of funding
- Public local authority budget
- Public national budget
- Public regional budget
Type of funding
- Earmarked public budget
Non-financial contribution
- Provision of labour
- Citizens (e.g. volunteering)
Impacts and Monitoring
Environmental impacts
- Climate change
- Increased protection against sea level rise
- Expected increased protection against sea level rise
- Storm / wave induced erosion and flooding
- Expected storm / wave induced erosion and flooding
- Green space and habitat
- Increased conservation or restoration of ecosystems
- Expected increased conservation or restoration of ecosystems
- Increased number of species present
- Expected increased number of species present
Economic impacts
- More sustainable tourism
- Expected more sustainable tourism
Socio-cultural impacts
- Social justice and cohesion
- Increased involvement of locals in the management of green spaces
- Achieved increased involvement of locals in the management of green spaces
- Cultural heritage and sense of place
- Protection of natural heritage
- Expected protection of natural heritage

Information about this nature-based solution was collected as part of the