You'll be heading for the Mleiha Archeology Center for this one which I visited twice in the last few years. First was a bit of a bust. They had lots of activities for Wadi Bashing and no tours ready to take me out so I visited the museum only which is not bad in any way but the main findings are out in the open. So since my visit 3 years ago the bashing got outlawed, new findings made some signs outdated and hardly anyone comes out here anymore. You'll be asking for a tour and they just arrange with available staff.
I left after lunch with the option to view the museum but I had already reglanced that I didn't find it necessary. It's included and the staff is happy you go in, watching the camel/horse burial etc. For the actual tour you nowadays fork out at least 130 DH per person.
The tour is via a car because it's so hot. You first go to the ancient sites in the West and then cross over to the new ones at the East side. Those are so fresh that even a road planned to go through here was remodeled when they discovered artifacts. The East is maybe 10 years old and they still have a lot to find. You also won't see much at the site here but some basic layouts. The floods in April 2024 took their toll and most of the walls are now destroyed. It's not really necessary to see these for long. Due to the heat the guide also explained that they offer guided tours which lets you stay in the car and you only see parts from there and on a tablet. It's not really what you want but at 45 degrees Celsius you understand why this option exists. It's also hard to explain why anyone would ever live in these parts of the world but it used to be nicer than now.
The museum area also includes a burial chamber to check out. Finally don't forget to check out the cafeteria before you head back out.