DH and I split up...he went to the nursery (quite an experience with "a hundred crazy moms!) and I went to Palo and the spa.
We used the motorola walkie-talkies, they helped coordinate. However, daytime is easier to get than evening, so the spa shouldn't be a problem. If you are doing Surial Bath, you can only do that when the nursery is open, I had to call back the next day to get a cancellation spot.
Palo was easier, although we only got 1 night, and we couldn't do the brunch or tea becuase the nursery was not open during those times.
Don't expect to get to use the nursery every night, on our cruise 1/26, we were limited to 3 "visits", however, they did work with me to make sure our spa time and Palo were covered.
Susan