B737NG sims are in Garoud and Silicon Oasis. While taxi's may be cheap, I would suggest getting a rental car soon after arriving. You can get a car for around AED 1500-1800/per month and that gives you "wheels" 24/7 rather than a having a cab just for a specific journey. It gives you flexibility to explore etc etc. Silicon Oasis cab ride is more expensive and getting a cab from there can be difficult (depending on time of day).