In my opinion a small man made pond or lake equalsIn my opinion a small man made pond or lake equals to a lots of big problems and people need them https://ausertimes.blogspot.com/2024/08/in-my-opinion-small-man-made-pond-or.html The shallower the water, the higher electricity bill for filtration and oxygen. What you really need is what I pointed out in the video with also little stone or sand beach(over concrete) to make access into pond/lake as pleasant as possible. With creation of pond as first, you will have your kids happily assisting you with construction for the rest of the housing project. I am not expert and don't have any experience on creation of ponds. Ask professionals before settling for project and good luck. Always keep kids and yourself safe and perhaps even fence with signs steep deep areas from access to water....