The popular Italian town of Varenna on the shores of Lake Como has tightened its rules for tourists. Starting in late June, it will be illegal to walk around the town in swimsuits or with bare upper bodies. Violations of the new regulations will result in fines of up to 200 euros (approximately 4,900 crowns). The measure is part of an effort to limit the negative impacts of mass tourism, which local authorities say is making life worse for resid…