Shortly after your first transformation into the Dark Prince, you will
find a hallway with two paths. One is down a trapped corridor, and the
other is hidden behind a cloth doorway. Go through the doorway and
follow the beams until you reach a fountain. Drink from the fountain and
you will appear in a trapped corridor. Get past the traps to the light,
and you will appear back at the fountain with a health bonus.

There is a circular water-filled room shortly after one of your Dark
Prince transformations. After solving the puzzle, run up the wall to get
to the rods, then jump up from rod to rod. Around halfway up the room
you will see a hole in the wall poorly concealed behind a blue banner.
Jump through this hole to get to a life upgrade fountain. Make it to the
end of the corridor and you will appear back at the bottom of the room.

Right after you defeat the Canal Monster, there will be a fountain where
you can save. Go back where you will find some pots and jars and smash
them. There will be a hole behind them, which you need to roll under.
This will lead you to a bonus health fountain.

After the third Boss fight and a Dark Prince transformation, you will be
in a large room with an elevator in it. Make your way up the room until
you get to a platform with two seductresses on it. Defeat them, climb
over the railing, then jump up the dagger holds. At the top one, do a
wall jump until you activate the pressure plate. Slow time and go
through the door on the left before it closes. At the end of this
hallway there will be a health bonus fountain.

After the intermission sequence in which Farah kills a Sand Guard for
you, climb the rooftops and kill the Sand Archers in your path. After a
while you will be told that you have lost the rooftops. Make your way
down until you are in a room with one of those mechanisms that you stab
your dagger into. It will open two doors. Do not go through the closer
one to your right. Go through the one behind you down the ramp. Go
through the corridor until you get to a health bonus fountain.

Get past the second tower climb, where you raise stone blocks in
elevators when you are at the top. Go inside to see a corridor with
traps and diagonal jumping shutters. Go back outside, then go down to
the last platform you were on. You will see that you have the landscape
view option available. Use it and go into the doorway you see below. It
will lead to the last extra health fountain. *Note:* The traps in this
area are difficult. It is frustrating, but you can do it without any
slow downs. Do not worry about falling; you will wake up on the floor in
front of the fountain and can try again.