@Binkle blur effect looks great. not having a blue tint or something when you're under the water looks fine at first, but if you were to look away from the top of the water and down towards the floor and it looked exactly the same as if you did so on land it would perhaps be a little disorienting. there is probably some other way to get it looking decent though without needing to apply a screen filter. my first thought jumps to just actually having the geometry below the water be colored differently so you can tell it apart. idk what engine you are working with or whatever though so idk how feasible that is for you.