Our basic physical ability tests just to be accepted to teams training are:
500-meter surface swim (uniform, no gear) under 12 minutes
20-meter Underwater Swim (uniform, no gear)
1.5-mile run under 12 minutes (uniform, no gear)
12 Chin-ups under 1 minute (full gear)
50 4-count Flutter-Kicks under 2 minutes (uniform, no gear)
40 4-count Push-ups under 2 minutes (uniform, no gear)
70 Sit-ups under 2 minutes (uniform, no gear)
100-meter High crawl under 1 minute (full gear w/ gas mask)
100-meter 200 lb dummy drag under 1 minute (full gear)
200 lb dummy carry Two flights of stairs up/down under 2 minutes (full gear)
Once the test is initiated the events take place consecutively with a three minute break between each. Participants are allowed one 10 minute break at their choosing. Try it out, it's pretty intense
EDIT: DISCLAIMER: I MEAN TRY IT IF YOU'RE ALREADY IN GOOD SHAPE!