Ok, I've placed an order for a 40lb electric Jackhammer this Saturday.
I'm hoping to get some good results out of it, seeing as I was able to
tear up a bit more concrete with a 17lb large crowbar and pick combo.

http://img250.echo.cx/img250/2962/img02887yh.jpg original pond. Notice
the "glass-clear water"
http://img246.echo.cx/img246/5329/img03082ke.jpg progress-(imageshack)
http://img246.echo.cx/img246/3682/img03097xp.jpg progress-(Imageshack)
http://img246.echo.cx/img246/2757/img03112lt.jpg progress-(imageshack)


How would I go about moving the earth underneath the pond? With the
jackhammer you say? *confused*