Here. This should help. For me, you couldn't go there via the wp but had to get there manually my first time.
https://www.reddit.com/r/PathOfExile2/comments/1he86iw/how_to_reach_trials_of_the_sekhemas/One user said this: "You have to travel to the diamond at halani gates on desert map. Then, when at the halani gates, use the desert map again. Then the diamond to sekhemas will appear north of the halani gates and you can now click it. Not the most intuitive."
unfortunately didn't work
tried travelling there, then checking map, still not on map so can't click the travel diamond to it obviously
i'll refresh my fg as well if someone figures it out
also tried doing this after switching realms to check no luck
