‘The Retreat’ on the P&O Ventura costs?

I understand that the Ventura has installed ‘The Retreat’ similar to that on the Azura, but I’m told that the cost of entry does not include access to the Spa swimming pool, is this accurate?

Yes, the P&O Ventura has recently undergone refurbishment and now features The Retreat, an adults-only spa terrace.  If you buy a pass for the retreat, you will in fact be entitled to access to the Oasis Spa swimming pool as well as to all the facilities available to you at The Retreat. Passes are £12.00 on port days and £20.00 on sea days.