Dear Nadira,
Those sound exciting! It's really up to you where you and your cousin want to go. If you want somewhere fun, you can invite your cousin to a visit in an amusement park. If you want to, you and your cousin can grab lunch. I suggest you go to your favorite food stall if you want to eat out with your cousin. Maybe what you like will also be liked by your cousin. The choice is ultimately up to you. Go wherever you and your cousin will have a great and memorable time. Let me know how it goes!
Sincerely,
(Your Name)