Problem

Basically I’m 18 and my boyfriend is a bit older than me, he wants to take me on holiday during the summer and I really want to go but firstly I don’t think my parents would let me and also I don’t even want to tell them that I have a boyfriend bc I find that so awkward and I don’t want them to meet him or know his age. So basically I either have to lie to them or not go and idk what to do and if I lied idk what I could say. If I went it would be like a month before I left home for university anyway