How can I get onto that ledge

Hint 1 of 4:

Hang around, and find out.

Hint 2 of 4:

Go to the bottom of the rope. (But not past the bottom!)

Hint 3 of 4:

Swinging's the key here, not too much and not too little.

Hint 4 of 4:

Jump before you're eaten. Practice makes perfect.