Officials in Lanzarote, Tenerife, Gran Canaria and Fuerteventura insist the giant insects pose no danger to the public but warn they could threaten crops if numbers surge into a full-blown plague.
Several hundred people protest on one of the beaches of Telde, on the island of Gran Canaria, to denounce fish-farming activity close to the shoreline.
Footage captured near the Faro de Sardina del Norte, in Gran Canaria, showed a group of tourists standing on a rocky ledge as waves crashed ahead of them.
With plenty of flight and accommodation options, as well as the promise of warm weather during the winter, the Spanish spot is a solid option for British holidaymakers.
On the southern tip of Gran Canaria is a vast, golden sand beach known for its year-round sun and clear, blue waters. This year, getting there is ridiculously cheap.
A marine pollution alert is active in six municipalities on the east and south coast of Gran Canaria, having been sounded by Canary Island government officials last week
A British sailor who went missing last month during a solo round-the-world sailing trip was last pictured ordering a kebab alongside his dog on Gran Canaria.
Allegations of mass high seas executions on board the overcrowded vessel emerged at the start of the month after 248 survivors were rescued off the African coast and taken to Gran Canaria.
The 53-year-old plunged around more than 30 feet from a multi-storey car park and was pronounced dead at the scene by emergency responders called to deal with the situation.