Oasis Spa question

[T&Tmom]

I see many different spa services that can be prebooked for Oasis. Are the times posted for pre-booking the only times the services are offered or are they also available at other times once we get on the ship?

[cruisermob]

Have not been on Oasis, but on other cruises where we could prebook spa services the options were much better on the ship as long as you book on the first day.

[GXmanDC]

I recall that not only are there more timeslots available once you board, but there are also larger choice of services. As the previous poster mentioned you'll have the best selection as soon as your board.

[T&Tmom]

Thanks very much for the info. We are at sea the very first day of our cruise, so I wanted to shoot for that day and start my cruise out super relaxed!! :D