New technology is making islands more accessible than they have ever been. One new technology that is particularly intriguing is portable water filtration. One of the newest devices on the market is SteriPEN’s new Sidewinder portable water filter. This ingenious produc utilizes a crank-powered bacteria-killing UV light to create a full liter of perfectly potable water. Simple, practical, and potentially a way to build some arm muscles, look for the Sidewinder to hit shelves this September.