$1:
Holy shit that is easy....
That doesn't sound like more than I had to do in the Reserves as a Light Infantryman, I suspect that to get into the trade you realistically have to do do much better, i.e. they only take the top x % of recruits.
$1:
675 metre continuous swim in 20 minutes or less
The swim test is always the hardest from me, probably the only thing that discourages me from looking into it further. I guess I never develeoped a good technique. Wonder if they have any non-swimming SAR Techs?