Discounts for ships running on LNG are already in place in Huelva, as the Spanish port city looks toward a green future.

Lucía Delgado Moreno, business development manager at the port, said she was expecting eight cruise calls for the 2017 season.

The port has recently extended its quay to berth bigger ships, and is targeting shoulder season calls as ships move between European and North American markets, Morena said.