Checkpoint at the end of Mektul's Arena

Add one checkpoint there ,there is no way out the arena so you have to port to town and waypoint from there to drowned city/molten vault or use ziggurat stairs and run/checkpoint the whole area again.
Mektul's fight ends, use checkpoint to port at the entrance, get out and keep exploring drowned city for apex of filth or port to town and do your things with the active portal.
Thanks^^