Coastal erosion is reshaping the world we live in. This article explores how waves erode coastlines via different types of erosion, such as abrasion, hydraulic action, and attrition. The article explains different factors affecting wave erosion patterns such as geology, human drivers such as urbanization, damming, and dredging. Finally, the article delves into the impact of climate change on ocean waves and various strategies that can mitigate erosion and foster environmental resilience.