Beach so full of rubbish

I WORK at Poole Hospital and cycle to work along the seafront every morning from Bournemouth to Sandbanks. A colleague cycles from Southbourne. It was a beautiful morning today completely spoilt by the sea of rubbish from Boscombe to Bournemouth. The council is very good at clearing up but why does it seem that every other beach from Bournemouth to Sandbanks is relatively free of rubbish, but no one seems to be able to pick it up along this stretch? I know this area has many more visitors but they are spoiling the beach for those of us that use it every day.