When I took the ferry to the island there was also a lot of rubbish in the sea. I even saw a sofa floating in the water. There were so many plastic bags - it was disgusting. Plastic bags are very harmful to the creatures that live in the sea.
Although it is a crime to drop litter, many people still do. The police do not seem to care. Last year I went to a beach in Hong Kong to celebrate the Mid-Autumn Festival. The next day I went back to the beach and it was covered in rubbish.
People ought to be very careful when they throw away their plastic bags. Parents ought to teach their children to care about their environment but it seems that they think it is OK to drop litter wherever they want.
Of course, litter is not the only problem that affects our environment. Air pollution from factories and power stations is very bad. Also chemicals that farmers put on their vegetables to stop insects from eating them go into the rivers and make the water bad.
To stop the pollution of our environment the government ought to teach people to take more care of our earth.