Replying to Vacation Ideas

Sup NSers! I'm currently looking at trying to book a rad vacation this summer, but I'm not really sure where to go considering I never really plan my own trips. I'm a broke college student, so I need something reasonable but I'm looking to go somewhere in the US or a US territory so I don't need a passport, and ideally thinking a beach trip. I'll be traveling with the gf and shes down for anything. Kinda been tossing up the idea of San Juan or if i find a good deal on flights and hotel I'm hoping for Maui. Just wanted to see if anyone had suggestions or advice.