Deckard Chapel
Banned
There's no indication about the hidden pools found.
Here's some rough directions for all of them
There's 4 of them in each chapter minus chapter 5 (ship) and the last one.
Usually 3 of them are in the same area with shark meditation statue.
So, first chapter there's 3 pools in the first statue (area just starting) and 1 in the deep area before the triangle gate.
Chapter 2 there's another 3 in the pinkish area with the statue and dolphins and 1 again in deep area before gate.
Chapter 3 there's 3 in the first puzzle area and 1 just after the gate (there's a statue there too).
Chapter 4 there's 3 in the mines area and one in deep area where the giant squids area.
Chapter 6 there's 2 on each puzzle room.
Hope it helps!.
I'm missing one or two - I'm not really sure - it may be more. Hopefully I'll get them the next time I play!