Should I ask the girl I like?

I was just wondering if I should ask the girl I like at school if she wanted to go to Camelot or Alton Towers for my birthday in a few months times (August). I will mention it nearer the time obviously. Ive known her for about a year maybe and I really like her. For my birthday (I will be 14) my mum is going to take me to one of the the theme park mentioned before. I can always take a couple of friends with me so i was wondering if I should ask her...the girl I like also knows my other friend Im going to take if that helps