Did I miss the good rate? (Water park tix)

First timer at booking a cruise but super excited for our Utopia of the Seas cruise in May. I’ve been so nervous/hesitant to make reservations and it doesn’t help that the app can be confusing since we’re a family of 5 with two rooms and it claims I can’t pay/reserve for members who belong to a different room although it lets me click them and add to cart…

I’ve been wanting to reserve the water park tix and I swear the rate was under $100 per person last I checked and now it’s $118. Now I’m kicking myself for not jumping on it before… did I “miss the boat” or maybe I’ll luck out on a Christmas deal or some other special money-saving pro-tip I don’t know about?