Having had a granddad affected by PTSD after his return from WWII, in 2015 I created a 13 sport challenge for myself and reached that target at the end of the year. In 2017, follow me and donate to Soldier On, whilst I train for my next adventure, the hike to Mt Everest base camp, where I will place a Soldier On flag at the camp. If you would like me to write a special message on the flag, please get in contact with me. The hike from Lukla to the base camp will take 1 week with a elevation gain of 2,500 m. The base camp is 5,380 m above sea level. I then have to descend. At 5,500 m the oxygen level is 50% of that at sea level. Mt Kosciusko's elevation is 2,220. m.