pseudotheist wrote:
As I interpret the map, from the ladder platform it's impossible to reach the small platform by the stream on the left.
As I read it, you could jump in with your movement and then immediately use your action to scurry up onto the left platform, but if you missed then you would be swept downstream. From there you would have two full turns to climb back up onto the ladder platform.
If you jump into he right stream as far upstream as possible, at the end of your turn you're swept down to the space just before the black exit space. From that space it looks to me like the walls block your movement to the big platform, and you have to climb back to the ladder platform to start over. If the intent was to be able to reach both sides of the stream from that space, then it would've been fairly trivial to make the map MUCH clearer with only slight alterations. Removing the pebble on the corner, or nudging the line in the river up by 1/4" on that side would make that intention clear; instead I'm left to interpret that it's all supposed to be wall.
I disagree with that interpretation. The pebble separating the water space from the far side of the stream is much smaller than the base of a mouse figure, so per the adjacency rules these two spaces seem clearly adjacent to me. I would say that jumping into the upstream space, you have one scurry action plus one full turn to attempt to climb out onto the far side. If you miss all of those, then I think that the dark space is still within reach of the ladder side, so you would still have one more full turn to try to climb out on that side.