Hi doone,
We did 2 back to back cruises in September 2022 and booked a cabana for the second cruise only (separate booking number). It was no issue, but did have to commit to that entire cruise. HAL staff did state that if there were any remaining available, they could do "day" rentals. We splurged on this on the Niew Statendam on the East Coast cruise and LOVED being spoiled. Although the weather was cool, it was a quiet spot to read of book, be delivered a coffee or hot chocolate from the amazing staff, comfy loungers and blankets for those cool days, and use of the Cabana Area Hot Tub! The staff there treated us like royalty.