Coastal areas are vital for settlement and trade, with over 100 million people living in flood-prone zones globally. Effective coastal protection prevents regular flooding, essential for regions like northern Germany and Taiwan. Taiwan, frequently hit by typhoons, faces significant human and property losses in coastal areas annually. Climate change exacerbates coastal challenges, increasing hydrometeorological risks. Reevaluation of protection strategies is crucial, emphasizing sustainable, nature-based approaches. Adapting coastal protection measures is imperative to mitigate risks and sustain coastal communities amidst changing environmental conditions.