Just downloaded 0.239 to test the SSAO out and SSAO works for me with all effects enabled, except for DoF. As far as I can see at least.
I set AO and IL amount to 10 for noticeable difference.
On
Off
I generated new enbseries.ini and enblocal.ini and I'm using default values for all settings except for quality/scale settings which is set to their highest or 1.0 for scales.
Diegog5;The water is a simple plane mesh that is placed or rendered in exterior or interior cells and that is why there is a noticeable seam between land and water.
Altering the visuals from the vanilla image will make the blend of those two to stand out and I don't know if this is fixable in any way more than to try and adjust your ENB settings towards a better blend between the two.