Trekking

My friend loves to go on a trek. The last time she went on trekking was last week, in East Malaysia. This is just one of the activities they do in their church group. The next scheduled trekking will be next year, in Mulu Caves in Miri, Sarawak, in East Malaysia. I was thinking, maybe it would be a good experience to go on a trek. So I asked my friend to please let me know of their next planned trek. Guess I would need to buy trekking gears like led headlamps, good walking shoes, cap, sunblock lotion, etc. Right now, these are the things I know that I need to prepare. Need to find out more.