Done a bunch of hikes between 5-10 days in various conditions - some mountaineering - Kilimanjaro, Elbrus, Kazbek, Wicklow Way, other random hikes. Did the Tongariro Alpine Crossing from your pic as well - pic related - only the day walk though. Amazing scenery, but luck with weather required, and packed with tourists.
>didn't train, but I do lift/do martial arts 9 times a week and bike ~200km a week, so I'm in excellent shape year round>trekking poles are really neat - or rather, a must - for hilly/mountainous terrain>get the best fitting backpack you can find, and adjust it to your personal build - vital!>break in your shoes, learn to pitch your tent efficiently, bring waterproof jacket and pants (goretex/event/hyvent/other similar fabric)>pack light>if you're the toughest one of the bunch, expect/be prepared to be the pack muleAlso, this
>>482239.