Reserving one HMC cabana for two staterooms

My family of 6 (two adults, 4 kids) will be dividing up into two staterooms for our cruise. If I book a cabana under only one of our staterooms, will we all be able to use it? I'm not looking to "sneak" anyone in, but I also don't want to have pay more than I have to.

I did a quick search here on Cruise Critic- found a few posts (latest one was 2012) that quote the 'extra person surcharge' (for over 4 people) was $45pp. Interestingly, also posted that they were told it 'may or may not' be collected once on the island... They were not charged.

Only one person books it, and that booking is good for up to 4 people, no matter what cabin they are in. Above 4 people gets a little crowded, and as mentioned, the extra people are $45 each. If you are not trying to sneak people in, and want the extra food for the extra people, when you get on board, inform the front desk or excursion desk there will be extra people.

Yes..just put one name on it, and invite who you like to join you.