Hi fellas, I haven't posted on here for a while but I saw this thread and thought i'd shed some light as as I spent 9 weeks in 947 troop so i have experienced a fair few swim sessions down there.
Swim sessions were normally an hour long comprising of different activities such as swimming widths back and fourth in pairs where 1 person is standing whilest the other swims a width and back at full speed then the next person goes repeating this 10-20 times, sometimes you will be told to do it under water, next theres treading water in small groups forming a circle having to pass a rifle above your head to the next person and normaly the PTI's add 2-3 rifles into a group of 15 or they would get the whole troop treading water whilest having to keep both arms up in the air wich is quite exhausting after a while, swimming upto 10-15 lengths doing different strokes, also they can get you all lined up in the water holding onto the sides waiting for the PTI's instruction to lift yours up and out the water then back down repeating this for aprox 5-10mins, they also introduced you to wearing cs95 combat trousers then your shirts then a webbing then rifle so they won't make you wear it all at once straight away *text deleted*.
The weak swimmers are split up from the troop and have sessions in the shallow end instead and are then put back with the troop once they become a stronger swimmer.
Swim sessions can be fun but they can also be turned into a very hard tiring 'extra phys' as i experienced but it was still great fun but deffinately don't underestamate it.
hope this helps and if anyone has anymore questions then please do ask
cheers
Macca