The first ascent of the route "Erida" (V A2, 400m) was realized on 11/7/1993 by M. Tsoupras - K. Tsoukleidis.
The line is situated on one of the many pillars of the northwest side of Astraka massif, on the right of the former route "Outopia", and twines through cracks, slabs, ridges and ledges, up to the summit of Astraka. The wall with the characteristic crack and the roof on the left in the 3rd pitch is the distinct spot for entering the route. The first attempt to repeat the climb was made in 1997 by various climbing parties during a trainer assistants' school. They all made it until the aid climbing pitch (A2), just above the first big terrace but nobody could go any further than that. At that point of the route, A. Skevofylakas was lightly injured during a nasty fall at an attempt to climb the wet passage. While falling, the first three pitons - that had been left on the rock by the climbers during the first ascent - were ripped (the other two remained) and so the team gave up the effort and retreated by moving to the left, on the terrace.