I got a 24h visa sponsored by Emirates before they transferred me to a hotel. I checked in at the hotel and saw a sign of a night tour going in 45 minutes. I decided to make the most of the Dubai Visa and took it after some rest and light refreshment.
The night tour was great - wonderful views of Dubai skyscrapers at night. We also drove through the palm Islands and got off near Burj Dubai, Burj al Arab etc. to take pictures (will upload later). It was a fascinating experience. I came back at around 4:15 AM all exhausted and caught some sleep.
Now I am again at the airport waiting for the flight to Sao Paolo. The flight is more than 17 hours long. Hope I will still be fit for my onward connection to Santiago, Chile.