Caveman

Trick needed:

Spoiler

The Tripping on air trick is needed. I explained it in the first comment of this level: Square one II. You need to be three blocks from the gap, facing it. Then tap on a stair block. Just before B is on the stair, tap again on it. B should fall to the water.

This level may also help:

Spoiler

Off the grid

Spoiler: Help me

How to bring B down to the water?

@Ricko

Spoiler

The Tripping on air trick is needed. I explained it in the first comment of this level: Square one II. You need to be three blocks from the gap, facing it. Then tap on a stair block. Just before B is on the stair, tap again on it. B should fall to the water.

Great level! Thanks for the hint! Nice design of the level.

Amazing level although I think fall exploit is too tricky... Thanks!

@chemi I don't know if it's already what you have done but you can use the stairs to fall more easily.

Took me a little bit to get it, especially where B was needed to stand at the end, but I finally figured it out. The trick / exploit was easy to see.

The second trick wonderfully executed in great scenery.

@vince

Spoiler

I am referring to the double tap on stairs or metal block to fall. I used it here to get into the water.

@chemi Alright then The debate is open if this trick should be used or not

@vince I have no problems with it myself.

Spoiler

If I'm supposed to use trip-on-air, I assume I'm also allowed to boogie-bot onto the win

@richardfu_ Of course but the intended way is easier

Beautiful trees