Last time we sailed on the Fantasy, before we sailed I bought 4 passes for the Rainforest room. My husband I and really enjoyed it, I went twice a day for the days I bought the pass. We are sailing again on the Fantasy. I was wondering if it makes sense to buy passes beforehand or wait until the first day? I would like a week pass, and my husband would like 3 passes. What is the most economical thing to do? Thanks!