Arabian Sea Vasco, Panjim, Malvan, Ratnagiri, Alibag, Mumbai, Daman, Valsad, Surat, Bharuch, Khambhat, Bhavnagar, Diu, Somnath, Mangrol, Porbandar, Dwarka, Okha, Jamnagar, Kandla, Gandhidham, Mundra, Koteshwar, Keti Bandar, Karachi, Ormara, Pasni, Gwadar, Chabahar, Muscat, Duqm, Salalah, Al Ghaydah, Aden, Bargal, and Hafun. The International Hydrographic Organization defines the limits of the Arabian Sea as follows: The Arabian Sea historically and geographically has been referred to by many different names by Muslim and European geographers and travellers, including Indian Sea, Persian Sea, Sindhu Sagar, Arabbi Samudra, Erythraean Sea, Sindh Sea, and Akhzar Sea. The Arabian Sea has been an important marine trade route since
Arabian Sea Aden and thence into the Levant, or south into Alexandria via Red Sea ports such as Axum. Each major route involved transhipping to pack animal caravan, travel through desert country and risk of bandits and extortionate tolls by local potentates. This southern coastal route past the rough country in the southern Arabian Peninsula (Yemen and Oman today) was significant, and the Egyptian Pharaohs built several shallow canals to service the trade, one more or less along the route of today's Suez canal, and another from the Red Sea to the Nile River, both shallow works that were swallowed up by