I don't see any cruise benefit for Sapphires on their tier benefit chart. It's just for Emerald and above. It does show that Sapphires get two free nights at Baja Mar in the Bahamas when buying two nights.
Here's the chart I'm looking at -
https://www.bconnectedonline.com/tier-benefits
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From: "Misscraps "I looked online, Titanium members get an Oceanview Cruise..... wow.... now that is cheap. Emerald gets a cruise, I assume Inside. The chart seems to indicate some sort of cruise benefit for Sapphire, but it doesn’t say what..."