Ok - So i've got the Celestial Mirror and have Luna's Celestial Weapon, I also have Anima. The problem I have is I cannot see how I can get back to the ship from the pool, as I cannot find a single save point or a way to get back to the path.

Any help would be apprieciated.

Regards

Press O button to get out of the pool. Or maybe it was the square button, and look around the path, from where Tidus first came in. There should be a save point there.

Can't you go by the path that Tidus went originally went in the first time he fought geosano, there is a save sphere

Swim up and press all buttons...one of them will take you to the top...

you know the button that you press to rise in the water, well, you press that button when you are at the top of the water and you will get out of the pool. then, just walk down the path until you find a save sphere. alos, her name is Yuna, not Luna(or mabe you meant Lulu)