These wooden groynes are built to limit the movement of sediment and help slow down erosion. Mr Garrett said it's not just the golf club that is at risk. "This affects the whole bay. That ...

Hornsea is protected by a sea wall, groynes and rock armour. Coastal management at Withernsea has tried to make the beach wider by using groynes, and also uses a seawall to protect the coast.