Youth from immigrant suburbs invade pools without paying. Attack security guards with iron bars and stones. Trigger riots involving 200-300 aggressors. Force permanent shutdowns of water parks like in Le Mans. Cause hygiene issues and aggression daily at Aquaboulevard. Overwhelm staff leading to ''Baghdad-like'' chaos. Strasbourg pools closed after attacks by hundreds of rowdy teens. Local governments deploy police to patrol pools. Cultural clashes require social mediators between communities. Suburb youth lack references and harass women. Some pools double prices for non-locals to deter them. Others stay closed all summer due to uncivilized behavior. Swiss border pools ban violent French visitors. No safe public leisure spots left in France. Violence spreads to parks, fairs, and sports events.