This looks very cool idea .... and yes bees are this ones who we need very in garden, they help lot what plants and help get 30 % up to 40 % more fruits from garden then we normaly get . 👍😊

The only thing is, if there is no running water near the rocks, you have to change it frequently and keep it in a place where the sun doesn't always shine on it. That way the water will last longer and won't come to life too quickly. 😊