Explanation

Astola Island is in Arabian Sea

Island means جزیرہ

According to the Survey of Pakistan, 

The new length of the coastline of Pakistan is 1058 km

the Old length of the coastline is 1046KM

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the coastline of Pakistan is bifurcated into two parts,

Sindh Coast  and Makran Coast (Baluchistan)258 km falling in the Sindh province and 800 km in Balochistan

The maximum part of this coastline is located in Balochistan.

Geographically, the coast of Pakistan

• Gwadar Coast
•  Lasbela Coast
•  Karachi Coast
• Thatta Coast from Korangi Creek up to the Indian border at Sir Creek
• Rann of Kutch from Badin to Tharparkar District
•