I would give it a try. I Learned to eat a lot of different things when I lived there like snails and squid.
Eels were highly-prized culinary delicacies in ancient Greece. The eels from Lake Copais, a lake near Athens that no longer exists, were famous in the ancient world and sold for exorbitant prices. In the plays of Aristophanes these eels are the symbol of a luxurious life.
In Portugal, the most famous eels come from Murtosa, a town near Aveiro. They taste great fried, accompanied by escabeche sauce (a combination of olive oil, garlic, laurel, and vinegar).
A great place to try this delicacy is a neighborhood restaurant in Aveiro called Marinhas. The eels come perfectly fried accompanied by a delicious seafood rice and the indispensable escabeche sauce.
At Marinhas you can, for a modest price, enjoy a meal that would have cost a fortune in ancient Greece!
The Marinhas restaurant is located on Rua Cavalaria Cinco, 4, Aveiro, tel. 234197679..