Swimmable water

I tried making water, it works, but I keep falling through.

How do I make it so I can swim through it?

did you make it into a displacement?

Pictures…

To make water, create a simple brush that covers the area you want to have water in and texture ONLY the top face with a water texture (filter “water” in the texture browser). The rest of the faces should all have nodraw applied to them. Simply having the water texture will allow you to swim within the brush’s volume.

You can leave the water as world geometry - you do not need to make it an entity for it to work.