Royal Caribbean cruisers looking to treat themselves to a little grown-up tranquility may want to log into their Cruise Planner sooner rather than later. The line is currently offering its adults-only beach pass at a rare sub-$50 per person price point — a deal that doesn't come around often.

The beach pass gives adult guests access to a more serene, crowd-reduced shoreside experience, away from the busier family-friendly areas at Royal Caribbean's destination beach clubs.

Sales in the Cruise Planner tend to be time-sensitive, so travelers with an upcoming Royal Caribbean sailing are encouraged to check their accounts now to see if the discount applies to their itinerary.

For those who have been putting off pre-cruise purchases, this pricing offers a solid reason to revisit what's available before setting sail.

This deal was first reported by Royal Caribbean Blog.