<human>: Some Background: I have been with my boyfriend since I was 16 and he was 17. His family and I get along very well, his mom in the past has even helped me with job opportunities and she has gotten me Christmas and birthday presents in the past.

My boyfriend's dad has a sister and brother-in-law out in Puerto Rico, and they go down as a family every couple years to visit (and as an excuse to go to Puerto Rico, let's be real).

My boyfriend's family is also pretty well off (his parents pay for his tuition at college as well as his rent), whereas I am pretty much on my own financially and cannot afford big presents or things like that.

This year, my boyfriend's family has invited me to spend a week with them in Puerto Rico, and though they have assured me that I don't owe them anything and that they are happy to have me along, I really want to find a way to thank them. They are paying for everything including airfare. I have absolutely no idea what to do or how to properly thank them. As I mentioned before, I have limited funds. 

Any advice or ideas would be appreciated! Also, let me know your favorite thing to do in Puerto Rico!

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: My Boyfriend's family is paying for me to go to Puerto Rico with them, I need to find a way to thank them that won't break the bank