The ICE BAR - This is the first ice bar in the world to be located right on the beach! This exceptional locale consists of an ice lounge, complete with elaborate ice sculptures and a terrace, perfect for an al fresco cocktail in front of the Mediterranean Sea. ICE BAR is located at the end of Passeig Maritim on the beach and is next to the famous night life scene of the beach places like Opium and Carpe Diem. http://www.icebarcelona.com/en/.
Shôko - Restaurant & Lounge Club. They have a very nice Asian-Mediterranean fusion menu and so you will find a very interesting crowd here. Shoko is also in the same stretch as ICE Bar; in fact it is right next to it. http://shoko.biz/restaurante.
Rey de La Gamba – Famous Paella restaurant http://www.reydelagamba.com/ is close to the Barcelona Aquarium, cruise port, and the Maremagnum mall.