The research aims to examine the socio-economic impacts of coastal erosion on the livelihoods of the Alappad community and suggest mitigation strategies. Employing a qualitative Participatory Rural Appraisal (PRA) method, including resource mapping, transect walks, focus group discussions, and interviews with local stakeholders, six group discussions and twelve interviews were conducted alongside a literature review. Coastal erosion in Alappad, exacerbated by floods, sand mining, rising sea levels, and the 2004 Indian Ocean Tsunami, has degraded groundwater quality and heightened vulnerability to natural disasters. The primary livelihood source, fishing, has suffered decreased productivity, and the once vibrant beach area has significantly diminished. While providing valuable insights, the study’s small qualitative design necessitates future quantitative panel studies to evaluate new mitigation strategies’ long-term impacts. Participatory Rapid Appraisal (PRA) techniques facilitated community engagement, a crucial aspect often overlooked in policymaking, advocating for its inclusion in future policy endeavors. Nonetheless, further research is needed for a comprehensive understanding of the community’s perspective, emphasizing community involvement. Community receptivity towards using tetrapods in seawall construction and nature-based solutions, despite limited exposure, underscores the need for a collaborative approach involving all stakeholders, particularly the community, to address Alappad’s coastal erosion challenges.