[Abras][1] are small Arabic fishing boats and I am informed that Dubai has a cottage industry of using these boats to transport visitors across the [Dubai Creek][2].

Is it reasonable to expect one or more boat operators to be running after working hours?  Or more succinctly, are these boats available on a 24 hour basis?  Also, and critically, are there times, like [Ramadan][3], when they do not work? Or similar occasions where taking an Abra ride might be inappropriate or disrespectful? 


  [1]: http://en.wikipedia.org/wiki/Abra_%28boat%29
  [2]: http://en.wikipedia.org/wiki/Dubai_Creek
  [3]: http://en.wikipedia.org/wiki/Ramadan