I gave up due to the hidden - I imagine that I would have gotten it eventually after all the routes were determined but since levels can be hard enough without hidden I just threw in the towel. BTW, I was on the top row when the towel got wet.
@gmacpro Spoiler [https://drive.google.com/file/d/1F0WaQmY7DOAgrFFSrHc-RqGg81wC1UIg/view?usp=drivesdk/ SPOILER]
That was a fun level with everything based on the timing of your moves. Loved the little step at the end.