<p>Lowepro's DryZone 20L camera bag is perfect for canoe or kayak trips. Kurt Repanshek photo.</p><p>Water in a national park, whether you're encountering the white-water variety, or a relatively smooth lake, or even pools of water while canyoneering, can wreak havoc on cameras and other electrical equipment. They need protection.</p><p>True, some point-and-shoot cameras can handle relatively short dives (say 20-30 feet), and there are water-proof cases you can place your camera in. But if your preference is to work with digital SLRs, you need to keep them out of the water. And Lowepro's new collection of DryZone bags can help you accomplish that task.</p><p>I had an opportunity to test the DryZone 20L bag (MSRP $149.99) during a five-day paddling trip to Yellowstone National Park. We put in at Lewis Lake, paddled across it to the Lewis River Channel, and followed that a few miles to Shoshone Lake. There we spent five wonderful days paddling and exploring this great backcountry destination.</p><p><a href="http://www.nationalparkstraveler.com/2013/09/travelers-gear-box-lowepros-dryzone-camera-bags23833">Keep reading...</a></p>