Please tell me SonicX22!

Wow i am late...

First, make a backup of your Sonic.exe (im pretty sure you know how but if you dont then just copy and paste the sonic.exe and name it sonic backup.exe)
Second, use SADXTweaker and go to the Code Switch tool (if it asks you to use a clean sonic.exe then go to Settings -> Use Clean file... then find you sonic.exe)
Third, Then just check "Everybody can Walk on water"
and done!
WARNING!: There is a 80% chance that activating that code will make sonic.exe not respond when going to a level, if that happens then delete the modified sonic.exe and make another copy of the backed-up sonic.exe
(Do this only if my WARNING was true)
Fourth, use SADXLVL, then open up a map and go to View -> Show Visible, change "Show Visible" to "Show All"
A lot of white planes will appear,
then go to Editors -> Level Editor
click on any white planes that are in/near the water
in the Level Editor window, if any white plane has "Water" Checked, then uncheck it and check "Solid"

And Done!
Please tell me if it was too hard to follow or if it worked/didnt work.

There's something called private messaging.