Looks like city is the best option then. Good suggestions gattboy, I will probably head to the peoples square/gardens, watch the sunset then go for a night cruise. Then hit a nice restaurant and then maybe a few bars or see some cultural dances etc. before heading back to the hotel. If I have enough time in the morning I might look at the possibility of visiting a temple.

If EXPO closes that early, it doesn't really seem worthwhile visiting

Thanks for the info ^