hiker hand filling canteen of raw water in a river

arm backpacker bacteria bottle camping canteen care catch clean clear close closeup concept contamination danger dangerous dehydrated dehydration drink ecotourism ecotourist explorer female fill filling flow flowing fresh girl hand health healthy hike hiker hiking hold holding holiday hydration infection lady life lifestyle mountain mountaineer natural nature outdoor people person probiotics pure raw refresh refreshment risk river riverside running thirsty tourist travel trek trekker trekking vacation water woman young