Find the First ECHO Log

To find the first ECHO log jump onto the machine in front of the red barrier:

Use this machine to jump over the red barrier to find the first ECHO log in Boarding Party in Borderlands: The Pre-Sequel!

From it jump over the red barrier. Melee the lock on the bin to find the first ECHO log.

Find the Second ECHO Log

To find the second ECHO log shoot the green glowing panel at the top of the room:

Shoot this panel to find the second ECHO log in Boarding Party in Borderlands: The Pre-Sequel!

The second ECHO will drop down.

Find the Third ECHO Log

To find the third ECHO log just interact with the green glowing cabinet and the second ECHO log will pop out:

Interact with this cabinet to find the third ECHO log in Boarding Party in Borderlands: The Pre-Sequel!

Find the Final ECHO Log

To find the final ECHO log go around the block to the left of the waterfall. Use a barrel to jump on top of the platform and walk along it until you get to the green button:

Press this button to open a walkway that leads to the final ECHO log in Boarding Party in Borderlands: The Pre-Sequel

Press it and enter the walkway. At the other end of the walkway is the final ECHO log.