NCL Ultimate Adventure & Jost Van Dyke question

I am trying to compare the Ultimate Adventure & Jost Van Dyke excursion to the Escape to Jost Van Dyke excursion. I can't find much/anything on the former and numerous reviews on the latter. Can anyone provide more information on the Ultimate?

I've done the Escape to JVD on the Rebel Yell, and the main difference is that the Ultimate Adventure is on a smaller (faster) watercraft with less passengers, and has a shorter time once at the beach... The Ultimate Adventure seems to be more of a thrill ride, that goes close along the coast of Tortola, and has just a small amount of time at White Bay (JVD)

The Rebel Yell carries around 50-60 passengers, and is not quite as fast, but you will have more time on the beach once you reach White Bay...

You've confirmed what I've deduced. Thank you for the reply.