The verb for "to go" is aller.
If you want to express a one-time action, like in "Yesterday I went to the beach", you use the passé composé in French. In this case, "Je suis allé". (être + participe passé. Most verbs use avoir instead of être, though).
If you want to say something you used to do, like in "When I was a kid, I went to the beach every day", you use the imperfait in French, In this case, "J'allais".