Yes, exactly.

Just one observation: using portal, any Daqan unit can end up on a water hex ("Ignore terrain effects of hexes containing portal tokens"). Is this correct?

8 hours ago, yuyutsu said:

Just one observation: using portal, any Daqan unit can end up on a water hex ("Ignore terrain effects of hexes containing portal tokens"). Is this correct?

I've never noticed that interaction, but I do believe you are correct. There is nothing stopping them from moving out of that hex in a later activation, so long as they are moving into terrain that they can legally occupy the new hex. But as far as ending movement in the river while a portal token is there, it seems completely legal.