Iguanas Damage Seawall Video Iguanas dig burrows to lay their eggs and to hide from predators. These burrows damage seawalls in time as seen in this video. Request a consultation Discover my services SeaWall Damage Due To Iguanas Video Video shows damage to seawalls from iguanas digging burrows in South Florida. Iguanas dig burrows for breeding and shelter, causing structural damage. Removal is important to avoid costly repairs.