ROUGH PLAY:Rowdy orcas bash boats in Spain

In a scene perhaps reminiscent of a Stephen King movie, killer whales have been bashing and damaging sailboats in northwestern Spain, prompting the government to issue a ban on yachting in the region.

The temporary measures covered a 100 km-stretch of coastline after orca whales apparently got carried away while playing and damaged several sailboats.

Spain’s transport ministry issued the prohibition for sailboats under 15 m. as a means of protecting both the boats and the maritime mammals and could be extended to follow their migration routes. The ministry said the first reported incident occurred Aug. 19. Since then, it said an unspecified number of sailboats have been damaged by orcas, with some needing assistance from Spain’s maritime rescue service after their rudders were wrecked.

Biologist Bruno Díaz of the local Bottlenose Dolphin Research Institute said the orcas were most likely just playing a bit too rough. He said orcas, like other cetaceans, such as dolphins, like to swim alongside boats. Running into hulls is rare, but he believed it was likely done by “immature teenage” orcas getting rowdy.

“We will never be in the mind of that individual animal, but based on experience, we think that there is absolutely nothing (threatening about their behaviour). We are not their natural prey,” Díaz said. “They are having fun. And maybe these orcas have fun causing damage.”

Orcas are particularly attracted by sailboats due to their size, the waves they make, and the lack of pollution they produce compared to fishing boats, Díaz said. This stretch of water where the Iberian Peninsula juts out into the Atlantic Ocean is both rife with tuna for them to hunt and on their migration route.

Spanish television has shown footage taken by sailors of groups of orcas swimming extremely close to their boats. No injuries have been reported so far.

Even so, the close encounters have put a scare in some sailors and hurt their pocketbooks with repairs that were needed.

British sailor Mark Smith told Spanish state broadcaster TVE that he was “a little” frightened “because they were very big and we couldn’t stop them” from banging into his boat.