Spain ? What do tourists and jellyfish have in common? They both love warm water and proliferate along Spanish beaches in the summer.

And that’s bad news for Spain, the world’s top tourist destination after France.

On Friday, the government approved a plan to create an armada of recreational boaters to spot the stinging blobs and summon help.

“The important thing is that anybody who comes to the beaches here in Spain should know that a serious plan is under way to keep this from being a problem,” said Josep-Maria Gili, the biologist coordinating the project.

Spain’s Mediterranean waters are home to half a dozen kinds of jellyfish. Some areas have seen an exponential rise in jellyfish populations, called a bloom. Last year the proliferation was so bad in parts of Spain’s Catalonia, Valencia and Almeria regions that some beaches had to be closed for a few days.