The Sheikh Zayed Grand Mosque in Abu Dhabi asks women for loose clothing down to the ankles, sleeves to the wrists and full hair coverage, with nothing transparent, tight-fitting or revealing. Men should cover their legs and avoid transparent, tight-fitting or sleeveless shirts; the mosque's FAQ asks for long, loose, ankle-length clothes for women and men.
The mosque also asks visitors to avoid excessive jewellery, heavy make-up and vibrant colours, and clothes with slogans or inappropriate drawings. Children are welcome, under their parents' constant supervision.
In Dubai, Jumeirah Mosque is one of the few mosques open to non-Muslim guests. Guided visits start at 10:00 and 14:00 from Saturday to Thursday, with registration from 30 minutes before each; the mosque is closed on Fridays, admission is AED 55, and no booking is needed.
Jumeirah Mosque requires modest clothing: women should cover their arms, legs and hair, and men should avoid shorts and sleeveless tops. Abayas and sheilas are provided for women who need them, and kanduras for men.
On our Abu Dhabi day tour, bring your own headscarf rather than relying on one at the door, and expect to take your shoes off before the prayer halls.