Hi. I have not done this excursion thru NCL, but i have done the virgin gorda baths. I’m about 260 lbs. I took the ferry over then we started the “decent.” I think the size is for two reasons. One, it’s like 1.8 miles long with windy steep downhill walk. Secondly you have to go thru caves. I was worried I was too fat and as i was alone, I just went back the way I went down. I thought i was going to die!!! GO with caution. The view is spectacular with a restaurant and swimming pool. I swear i will tackle the “mountain” when I’m lighter! Lol