Excellent idea because I adore coffee! Happy anniversary! That's an impressive number of years. We are just celebrating two years, but every year counts!
Another idea if you really wanna make it special, is to contact the resort pre-check-in, like 48 hours before and book a Moonlit Beach Dinner. This it's $169 for both of you, but you get a private table on the beach with a private waiter and red carpet with candles etc. It's 3 course, you choose from Steak and Lobster, but it was a really romantic experience when we did it last year! Worth the money if you want something a little more special and intimate.