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A quality dry bag will do as it suggests by keeping your belongings air-tight even if the bag happens to become fully immersed in water during snorkeling, a boat trip, or waterfall adventures

If you want a combined hydration reservoir and water filter, you cannot go wrong with this Camelback Crux reservoir filtered by LifeStraw

Many children enjoy the train trip to Aguas Calientes more than the visit to the ruins themselves

Daytona Skull Cap Rockin' Reaper Slim Line Half Helmet Daytona Slim Line Skull Cap 1/2 Shell Helmet in Rockin' Reaper Graphic

Like I said I'm more concerned with how long the battery lasts and that it's rechargeable