It means Lets go to the beach or We go to the beach
I'll go to the beach.
I'm going to (visit) the beach today
a beach - une plage the beach - la plage
Je vais au plage.
j'habite sur la plage, je vis sur la plage
There are dozens of meanings for "to" in English, and as many translations, please be more precise. As an example: "I go to the market" = "je vais au marché" ("au" = "à" + "le") "I go to the beach" = "je vais à la plage"
je crois que je vais faire la même chose means 'I think I will do the same' in English.
I am going to the bank
Voulez-vous aller à la plage?
"je rentre à la maison" or "je vais à la maison"
"swimming" (sport's name) is called "la natation" in French. the swimming-pool is "la piscine" - I go swimming is "je vais à la piscine" or "je vais nager"
Je vais a la Paris.
I'm going home