A gruelling trail and a Facebook update at the summit

Sunday June 30: It is 4:46pm. I stand on Botswana's highest point, the summit of the sacred Tsodilo Male Hill, Botswana's only UNESCO World Heritage Site that has one of the world's oldest concentrations of rock paintings. This is after walking over a total of an arduous 100 kilometres in three days of the 2010 Komatsu/Y-Care Tsodilo Charity Walk.

Thursday: The journey to the top starts by shuttle bus carrying the walkers from Gaborone to the north-western end of Botswana, spanning more than 1, 200km to Shakawe near Mohembo border gate. After 14 hours on the road, we arrive safely and set up camp at Shakawe Campsite along the Okavango River. I pitch my tent just five metres from the river to hear nature's lullabies at night from hippos and other aquatic creatures until I am caressed to sleep under the full moon.