Harbour:
1. An extensive stretch of deep water near the sea shore where vessels can anchor securely.
2. It may be natural or artificial.
3. Vishakapattinam (Natural harbour) Chennai (artificial harbour).
Port:
1. The commercial part of a harbour with the facility of loading and unloading of goods and space for storage of goods.
2. It is man made feature.
3. Chennai, Ennore and Tuticorin are the major ports of Tamil Nadu.
