It is a cultural center that organizes and produces exhibitions, debates, festivals and concerts, programmes film cycles, courses and lectures, and encourages creation using new technologies and languages. You can also find inside a nice cafe, a bookshop and a library, I love to go there on sundays, to discover new artists or just have some tea and look at some art books.
At Casa Bonay you can find pretty much everything you need. First off all the hotel bar is one of the most beautiful rooms in Barcelona, if you, for some reason want to change the environment you can just walk through a door into Satan's coffee for some of the best coffee in town or look in the little shop for books, palm-patterned shirts and other pretty things.
They also host a lot of creative events here like movie screenings, beer tasting and talks.
I only recommend walking around the Barceloneta beach at sunset, there are fewer people and in the fall and spring seasons is very nice to sit on a terrace watching the sea and entertaining yourself with the activities of the area.
Former headquarters of the "Textil Algodonera Foundation", an emblematic building of the XIX century of neoclassical style that is a reference in the city of Barcelona. They have an excellent restaurant where you can make a good brunch and a terrace ideal for summer evenings, I usually go to design when I need tranquility and that they treat me with professionalism, ideal also for an informal meeting or a drink with a good friend.