A standard taxi will probably be about 20-25 dhs. Or seeing as you're on honeymoon you could step up and spring for a fixed-fare "limo" which is the same taxi queue but the cars are generally Mercs or similar. That will be around 50 dhs I guess (it's 70 dhs to the Corniche and that's a lot further away).
Congratulations on the Mucci, by the way.