The surge in jellyfish along the Cantabrian coast has forced swimming bans on several Basque beaches and prompted health authorities to step up advice on what to do if stung.

The surge in jellyfish along the Cantabrian coast has forced swimming bans on several Basque beaches and prompted health authorities to step up advice on what to do if stung.

The growing number of specimens along the Cantabrian coast has forced swimming bans on several Basque beaches and prompted health authorities to step up guidance on how to respond…