Translation of hedonism in Spanish

I'm looking to move to Spain in the summer and hoping to visit my friend in Barcelona before then so I was hoping to have the basics done by then. I've always wanted to learn another language, but we are not pushed enough in the US.
It was so packed and it looked like a heap of ants climbing the temple. I would estimate that there were about a thousand people simultaneously climbing the temple which was not very big.
There was an extra seat available (the last one apparently). We were so glad. 45 minutes later we sat in the place, eighty percent of the plane was empty. They really need to update their system.