@connynasch Thank you. The pond has a butyl liner and I used lot`s of stones to disguise the liner to make it look more natural. Attached is a photo of how it looked like in 2018, just after I finished building it. I had ducks visiting once too but they ate a lot of my pond plants so I was not happy. The frogs have moved to the frog pond which is smaller and warmer. Nice about the snake, I had a grass snake one year, I bet it ate some of the frogs!