With the old Liwa Resthouse sadly closing its doors, there's no cheap digs left in Liwa Oasis. Desert operators in Abu Dhabi, and Arabian Tours in Liwa itself, offer overnight trips into the Rub Al Khali (Empty Quarter) which is the best way to experience the sheer, harsh magic of this area's desert scenery.
Camping is hugely popular in the Liwa Oasis, although there are no designated campgrounds. If you do decide to camp, make sure to take out all your trash. Discarded rubbish, especially anything made of plastic, is highly dangerous when ingested by camels and other local wildlife. If you don't have camping gear, you can get fully kitted out at Adventure HQ in Abu Dhabi.