You need to jump in and swim 50m in 4 minutes in a swimming costume and climb out unaided. That is pass or fail for PRNC only.
The NST is next which is jump in, tread water for 2 minutes and swim 50m again. Then climb out unaided. In overalls. That isn’t pass or fail until you get to Raleigh but you’d do well to pass it there and then.
Yes that’s a fail. But the water is quite deep and you don’t go all the way to the shallow end to turn around so it wouldn’t be that easy to touch the bottom. But yes if you touch the bottom or sides it’s a fail.