Seawalls in New Zealand are crucial coastal structures designed to protect the city’s shorelines from erosion, storm surges, and rising sea levels. Given Auckland’s extensive coastline and growing urban development near the water, these engineered barriers play a key role in safeguarding infrastructure, public spaces, and natural habitats. Seawalls can be found in various forms throughout the region—from traditional concrete walls to more modern, eco-friendly designs that aim to balance protection with environmental sustainability.