My wife is a beach bum too. Last year I finally got her to stay a week on the cliffs. She was somewhat grumpy all week because no beach. When we got in the cab to the airport, we pulled up at Nirvana instead and I surprised her with a week on the beach. She went from grumpy to an unremovable grin she even had in her sleep. I think anything over a week or so should be split, but I lost that argument this year and spent 10 days on the beach. It's all good either way.