Off D'jem al Fna square and around a corner you will find the olive souq. Certainly it's not the only market place in Marrakech selling these tasty orbs but it is easily accessible and the prices are clearly displayed. If you are a tourist this is a plus. There is little haggling that needs to take place for the products are fixed price. You say you don't like olives? Have you tasted a Moroccan olive? They come in a rainbow of colors and flavors, from the creamy greens to the salty, cured black signature olives of Morocco.