Our experience yesterday (at Rosso!)....yep, forget Diama for a few more days, it has been raining heavily, some vehicles abandoned in the mud.....there is a 4-5KM section, absolute hell, we couldnt get through and had to turn back. Really greasey surfac, no traction at all, skidding all over the pace. Suspect will be fine in a week or less with some sun on it to dry it but currently really thick clay, only 1 4x4 toyota got through, everybody else failed! Quite dangerous as really close to the edge to sliding into the REALLy thick goohey clay. Maybe we took the old track as it sounds like a new road being built, but this bad section was approx 30kms before Diama on the Mauri side. I have driven this road twice before and it is definitely the road we took before.

Anyways. They stamped our Carnet at Rosso. But ALSO insisted we have a time stamped passavant, valid for 48 hours. Must visit the Douane at Dakar port to surrender the passavant, and he then stamps the CDP AGAIN with the amount of time you want in Senegal (upto 90 days allowed apparently). Had to pay 2,500CFA for the passavant. Load of balls, that's the point of the CDP in the first place.

Hope that helps anybody about to do the same.

And yes, they are STILL a complete and utter bunch of crooks at Rosso, the worst scumbags you will ever have to deal with in your life.