Tallon Canyon
Tallon Canyon is a room in the Tallon Overworld region of Metroid Prime.
Secret World
Jump up to the platform you boost up to to get Space Jump Boots legitimately. Look for a large twig that stretches crookedly, but horizontally across the length of the bridge to SJ. Jump on the highest part, then either do a twisted L-Jump to it or do a dash jump and kill it after the first jump and use the next one to jump back. Turn around then jump into the abyss.
This can also be done under 21% conditions. Instead of boosting up the halfpipe, UBJ to the top off of a nearby high platform. Once at the top, DBJ onto the tree. Dash towards the door to root cave and DBJ out of the room. The second part of this is used in Max% NSJ, although the UBJ is skipped since boost is already collected.
This was secret world #19 in the original numbering scheme.