How do Kamui users know where to go?

[Ovan]

Ever got high?

 

[tasuxeda]

My theory is that Obito can use zetsu clones as markers.

 

[itachi uchiha fiance]

yes they know place where they r going

 

[Rikudo SenninKun Namikaze]

Same reason the Uchiha instinctively know not to go to the hospital after their eyes start bleeding red.

as if anyone has any other different color blood? didn't need to specify that.... there is no exception to the rule of the color of blood haha...
"I'm bleeding purple koolaid! "

 

[TrollKing]

Omnipresent U_U

 

[Scryed]

He also knows where people are in the real world.

How he teleported to Sasuke's location to inform him that he failed in capturing Killer Bee.

He also suddenly appeared at Naruto's location when he was at the land of Iron.


My guess that he is able to see every location in the real world while he's inside his dimension.