Signs have gone up at Gimli Beach warning visitors of high levels of E.coli in the water.

Officials with the province say high E.coli levels happen when northwest winds bring lake levels up onto the beach.

Nicole Armstrong, the director of Manitoba’s water stewardship division, said Monday there is a large reservoir of bacteria in the sand, which mixes with the water.

Armstrong adds the source of the bacteria is the gulls that hang out on the beach.

The advisory says to minimalize contact with the water when levels are high, avoid swallowing the water, and to wash your hands before handling food.

It also warns those with open cuts or those already feeling ill to avoid swimming.

The advisory will be posted for the rest of the summer.