Crossing The Crocodile:

If you want to past the traing you must get through the crocodile mouth walk to the water when youre at the tip of the group press > from the pad and press the jump bottle and there you are in the crocodile no.1 mouth do the same thing with crocodile number 2 if you use r4 it would be easier jump whenever the crocodile mouth is open or close or follow the instruction above.