Pendant les vacances d'été, mes parents ont planifié un voyage à la plage. J'étais si heureux car on ne pouvait plus y aller souvent. J'ai fait de bons souvenirs là-bas. Le son des vagues et des mouettes me rendait nostalgique. Mes parents et moi venaient toujours sur cette plage quand j'étais jeune. C'était tellement excitant car les vagues étaient grandes. Ça me rappelait de quand j'ai appris à nager dans l'océan pour la première fois.
Note : if you are a girl, I believe you should change the "heureux" to "heureuse."
Translation: During the summer vacation, my parents planned a trip to the beach. I was so happy because we couldn't go there often anymore. I made good memories there. The sound of waves and seagulls made me nostalgic. My parents and I always used to come to this beach when I was young. It was so exciting because the waves were big. It reminded me of when I first learned how to swim in the ocean.
I created this story randomly so I apologize if it's not good. I might've made some mistakes as well but I believe this can help you and give you some ideas. Have a nice day!