Okay, here are the highlights of the premium drinks package (known by Ponant as Pass Bar Premium).
The cost is EUR 20 per person per day and both passengers in the cabin must subscribe to it. It may be paid for with cruise credit. If you receive onboard discounts as a Ponant Yacht Club member, that also applies.
It must be purchased during your first two days aboard and must be purchased for the entire (the remainder of) cruise.
All premium cocktails are included.
FWIW, attached is the bar menu from a recent cruise I went on on Le Lyrial showing what you get on the premium pass.
I got value from the premium pass well in excess of the price not just through the cocktails and whisky but also the red wine which was a cut above what was served in the dining room so I often took a couple of glasses down to dinner (despite my cruise being an oenological cruise - well at least theoretically as the red wine they served for the fancy gala dinner with t