It's the area marked with the number 3, and the springs are the part where there's a pathway going between two steaming pools of water. Keep searching around the edges of the water to find where you can touch the water.

Pic of the Springs:



You can bring up the map by pushing the square button on your controller. It won't tell you where you are, so you gotta watch for identifying landmarks to see where you're at and where to head to next.