Carnarvon, WA Carnarvon, in the Gascoyne-Pilbara Region is at the mouth of the Gascoyne River. Carnarvon is approx. 904km north of Perth. Carnarvon is often referred to as the ‘food bowl of WA’ for its seafood, banana plantations, tropical fruits, and beef and lamb industries. Carnarvon produces 70% of WA’s tropical and sub-tropical fruit and vegetables.