Do they have a full bar and what are the prices of the drinks

We had a pitcher of sangria it was $20 and plenty for the two of us.

There is a full bar open air on the roof called the sandbar.

Yes, standard for a tourist area. Around $8.00 and up depending on what you like. Beer is less but import higher than domestic as usual.

Yes

I did not see a full bar on the area we were seated