We are heading up there in May with the intent to overnight in Konkordia hutte.
Approaching from the South (Fiesch)
There are hiking & Mountain trails right up to the edge of the Aletsch glacier but after that the trails are not marked & are not recommended for inexperienced glaciers hikers.
So our plan is to hike independently as far as possible (the edge of the glacier) & have a guide engaged from there on up to Konkordiahutte.
Not sure about the return journey to civilisation.
Be interested to hear any experiences of this route or recommendation for glacier guides for this leg.