People with children without invitation can look for hotels near World trade center Metro. There will a markaz there. The day you get pass for masjid you can commute through metro.- People who believe they will get everyday passes for main masjid or main area i.e mashaikh , talebaat etc, can look for accommodations in Deira, Abu Hail Al Rigga, Bur Dubai, Sheikh Zayed road. Normal hotels will be cheap but at the same time they will be very okayish...
