Walk to the south end of the pointed wall , probably should SAVE now.
Shortly after Grunt #3 acquired his Shovel , he made his way out of a Quicksand Pit on a Bridge made up of CBTz and TBTz , and was asked to please not step on the lone CBT.
If you "Know the timing for this", you jump on that lone CBT, and continue the rest of the way on TBTz .
Hit the Landing Dock and the rest is "a piece of cake"!