How can I convince my lovely girlfriend to come with me on a 15 day trip to Bora-Bora?

I will try to briefly explain my problem.

For me holidays are: enchanting beach, gorgeous sea, a mojito in my hand, chilling and relaxing all day.

For my girlfriend holidays are: let’s see that museum, let’s walk here, let’s go shopping all afternoon, let’s take a guided tour somewhere else.

I want to spend in Bora Bora 15 days doing almost nothing but walking from my resort towards the beach, and coming back at sunset. She wants to tour busy European capitals and make me go mad after a couple of days.