This tour involves around 1½ hours of leisurely walking, including steps. Flat, comfortable shoes are recommended. Flash photography is not permitted at the Louvre. Entry to the mosque will be refused if the correct clothing is not worn. The security guards are very strict. Clothing must not be white, animal print, tight-fitting or transparent. Clothing must be loose-fitting with long sleeves that cover the wrists. Clothing must cover legs to the ankles and women must take a headscarf to cover their heads. Shoes must be removed before entering the mosque.