No, jellyfish aren’t a problem; the beastie in the video is a problem. The said video was recorded off the Playa de Bolonia in Cadiz at the end of March.
The video was made by surf actual, which is a surfing website.
Sharks in the Gibraltar Straits are far from uncommon, in fact it is the gateway for great whites coming into the Mediterranean.
(News: Bolonia, Cadiz)
