The old medina of Casablanca is not quite like the old medina in other Moroccan cities - it's much smaller, less stunning but - maybe - more authentic. You won't see many "tourist-oriented" shops, but real shops where normal people go to buy what they need... a butcher's, a bakery, a tea shop. None of them looking to clean, though...
The best and most obvious place to enter the old medina is at Chakib-Arsalane, from there on you'e better off just following your instinct and zig-zag anywhere you feel like going. Explore it... discover it. A word of warning, though - it's supposed to be very unsafe at night, so you'd better stick to broad daylight visits
Fondest memory: The fondest memory of this very little old medina was discovering the most amazing little mosque, Chleuh Mosque... with a mynaret that looks as if it was made of lacework. Great style and architecture. A little gem.
Fondest memory: Here's Irwin with a delightful gentleman who not only owned the shops where we purchased several items, but who found a taxi for us to take us back to the ship after he led us out of the medina.
Favorite thing: check out the Medina/ Souk. But remember to leave all your valuables in your hotel room safe lest you'd be robbed/pickpocketed.