I think the extra crew cabins are at the back of deck 7 where entertainers etc stay.
Jim, those are the only ten Cat H cabins on the ship; is Regent going to reclassify some of the Cat G as H or just not sell H anymore? I checked a late 2023 cruise and I could still book Cat H cabins on Mariner; no reclassification.
🚢 Cruise with your favorite Keene Luxury Travel Staff Member! 💰 5% KLT Reward plus Shipboard Credit available (amount varies per voyage)! 💲 Offering Enhanced KLT Rewards on voyages hosted by Ngaire & Clay!