I would love to have them chip in but they don't really have to money to right now. I am looking at buying them a cruise for next February or March. I have read a little about Barbados and I think my Dad would love the caves there. I've also read about a volcano on St. Lucie they would like. My parents love the outdoors. Most of my childhood was spent outside with them exploring.
I will have to talk to a TA next week.