Back on July 4th, the Ministry of Tourism announced a new summer initiative aimed at the residents of Oman. Basically, it is a bunch of special summer offers aimed at getting those resident in Oman (including Omani's of course) to get out and see more of Oman. There is a list of offers available on their website here.
The offers range from pretty good, to, well, not what I'd call great. A couple of note I'd point out is:
25% off at the 1001 Desert Nights camp
20% off at the Blue Marlin restaurant
20% off all boat tours from the Marina Bandar al-Rowdha
There's a bunch more, check it out.
The offers run from now until September 30th, Eid is excluded.