For years now the Tauranga harbour has been plagued with this green lettuce. It has become a real problem for fishermen, beach lovers and people living near the water. It contaminates the environment and smells like hell when it rots in the sun. The council try to clean it up but it comes right back. There is a study underway now to find out the cause (probably man made) and if there is a remedy. Meanwhile Grace tries to put it back where it came from.