Wadi Hayl is a seasonal watercourse in the Hajar Mountains of Fujairah, in the United Arab Emirates.

The Fujairah end of the Wadi Hayl is home to the Mohammed bin Zayed City, a planned settlement intended to comprise 1,100 houses and apartments, as well as offering services.

An Umm Al Nar tomb was found at Hayl, as well as a number of Iron Age petroglyphs[3] dotting stones throughout the course of the wadi.

[2] Built in 1932 by Sheikh Abdullah bin Hamdan Al Sharqi, the Fort at Hayl was constructed in 1932, along with a majlis and mosque.

Often incorrectly referred to as a summer house, the Fort was in fact the principal residence for Sheikh Abdullah for over two decades.