I've only been hunting these for a few months on my first permissions but what a blast . I'm hunting along a irrigation canal on farm property & it varies around 30 to 35' wide to 10 to15' deep to the water . Here's a few tips for newbie's that I have learned from my experience . If it's sunny out side watch for shining spots in water ( you can really pick them out with their wet heads when their eating) because there moving it so much . Works really well glassing long distance at the vegetation in the water . My second tip is to watch for ripples in the water along the banks ( with over hanging tall grass into the water sometimes they are out of site & you have to wait them out) . I'm having better luck closer to dark ( seeing more ) so I'm planning on night vision for my next set up . Hope this helps out for some of you . I have to add my best in one day was three but yesterday I got four , it should have been seven but that is another story . Thanks for reading Darell