As the second largest natural harbour in the world after Sydney, Australia, Poole Harbour is an attraction in its own right. The calm waters are busy with luxury yachts and fishing boats while several secluded islands offer the perfect habitat for a wide range of bird and plant life. Harbour boat tours are available from Poole quay throughout the year. A chain ferry also takes cars and foot passengers across the narrow harbour entrance to the beautiful Isle of Purbeck beyond.