The Army medic and dietician and has been training for the exercise, which will see a team of five Army women travel through Antarctica over 75 days, for more than a year now.
In that time she has completed a huge amount of fitness and strength training and worked through the three expeditions.
Currently a team of seven, she will continue her training until the final selection of the team of five is announced.
Private Cobb, 35, is a combat medical technician in the Royal Army Medical Corps and is based at 7 Rifles Reserves. She said she felt privileged to have made it this far in the process.
'From learning how to use the stove – I burnt a hole in our tent the first time – to being able to confidently get it going while still in my sleeping bag.'
She said to call it tough would be an understatement.
