The current promotion really "hides" how deep the deals are, especially if you are Mariner. We aren't anything special, just two stars.
Filter on Nieuw Statendam.
As an example, the 7 day Eastern (Jan 7 - Jan 14) initially shows the price lowered from $679 to $629. Click View Itinerary. There is $629 in the upper right hand corner. Click to Continue. The price changes to $129 (!).
The last sailing seems to be returning to FLL on March 11th after a 14 day cruise - originally over $1000, marked down to $999. Again, View Itinerary and click Continue. Price falls to $499.
The next listed cruise is April 1. As it turns out, I was looking at these several days ago - and they've been showing odd configurations. But at one point there was a March 18 to April 1 trip, combined with a price tag of $999 and price of $499 reduced on it.
But they rarely showed that combination broken up. Asking a HAL rep, I came up with this:
We booked a 7 day, Western Caribbean cruise leaving March 18 to March 25 ... at $64 per person for the entire cruise.
We booked a 7 day, Southern Caribbean cruise leaving March 25 to April 1 ... also at $64 per person for the entire cruise (so, obviously B2B).
So essentially I took a $999 14 day cruise that was knocked down to $499, and split it into two cruises for $128 p/person for 14 days. Still to this moment, you cannot find any cruise that occurs between 3/11 and 4/1, and I know that ship is leaving FLL on March 11th and returning for our cruise that departs on March 18.
FWIW much earlier on I did find examples of $19 p/p cruises for an interior cabin on the Nieuw Statendam, 7 day cruise. Nineteen dollars for the entire 7 days.