I finally got past the woolymamoth part and I've found and free his daughter but she ran away and closed the way to her she said find a way to the bottom of the mine I used tricky's find command.
Then went through a small tunnel he digged the I came to a room filled with icy cold water directly in front of me I saw a swich I could change but when I swam over to it it would not let me up.
Then I saw a wall that was climb able but it would not let me climb it then next to the climb able wall there was an exit to the place where I was.
If you go to your right, exit the hole, you wil see a pad that you can use your rocket boost you use it then you come to the top of the water fall and there is a bat creature I've killed it over and over.
It does not do any thing, you swim over to the water fall and jumped off but no matter where I jump off it will not let me land on anything.