The player first has access to Chrysolia Spring when you have stopped the anomaly in the city and the tree blocking the entrance is teleported somewhere else. You can only explore a very small part of the spring, but you can explore the whole area when Strength and Surf are activated.
Note: This requires Strength, Surf, and if possible Tailwind/defog to make things easier.
The puzzle requires a little bit of thinking, however its relatively straight forward. Basically, on the first floor, you use to drop one of the rocks onto the floor below. Follow it down, and you'll land in a big-ish open area next to the rock.
There are four sections to the second floor, top/bottomright/left. You move the rock to each area one at a time (the rock resets when you leave the floor) by using strength and surf (since you can push the rock while surfing). The idea is that you move the rock onto one of the two springs (typically the furthest one) so that the other grows longer and shoots you back onto the first floor. Each four corners leads to a different area (you'll need something like defog/tailwind to clear the mist (or do it like a champ and navigate the misty area without clearing it) to get all the goodies
Note: Keep in mind that the geysers are connected by water puddles. If you're wondering which geyser affects the other geyser, just look at the water puddle they're coming out of. The geysers that affect each other are also in close proximity to each other, so you can pay attention to that (Quick save will be your best friend for this puzzle).