The first ascent of the route “Nerosyrmi” (VIII-, 300m) was realized in July 1994 by D. Titopoulos - C. Kouniakis and it is one of the most beautiful and at the same time serious routes of our country.
The 1st pitch starts a bit to the right of the base of the channel and at first it moves on an easy but loose field and finally finishes with a VI- passage that leads to R1. The 2nd pitch is relatively short, reaching a difficulty level up to V-, but it cannot be joined with the first pitch due to rope frictions. The 3rd pitch is enjoyable; its difficulty level is around VI-, while its protection requires small nuts. R3 is found outside the channel, to the right. The 4th pitch requires good psychological condition at the crux (VI-), while after that passage many climbers prefer to move out of the channel, to the left (V+), where pros can be placed, instead of continuing in the channel for another 7m runout (VI-). R4 is found at the end of the channel, to the right. The 5th pitch follows a slab (V) with direction to the right, while towards the end, it moves to the left (V+) toward R5, which is found on a big ledge with bushes. The 6th pitch is heavily protected with 10 bolts and it leads inside the cave (mind the loose parts) until a bolt with a carabiner which is used for the pendulum (4m) required in order to reach the airy R6. R6 is found under the big cave and to the right, while it can be seen from R5. The 7th pitch is densely protected too (it can be also ascended using aid climbing techniques). The 8th pitch starts to move once again in the channel, offering that way continuous difficulty from VI- to VI+. It is equipped with pros and R8 is set inside the channel. The 9th pitch follows for a few more meters the narrow channel (V) and then it enters into an easy field (III) up to R9. The exit is found right beside the source, which also offers cold drinkable water as a reward for having repeated such a remarkable route.
Climbing this route, except for very good psychological condition and comfort in placing natural pros, also requires a set of nuts (mostly small ones), friends and slings.
In July 1994, G. Voutyropoulos - D. Mpakalis - A. Skevofylakas realized the first free ascent of the route but they had to escape just one pitch before the end of the route due to the rain. The first complete free repetition of the route was realized in 1999 by G. Voutyropoulos - A. Grapsas.
On 14/9/2025, Chr. Tsoutsias completed the renewal of the route’s bolts and hangers, where a lot of vegetation was cleaned off the exit ropes, new cords were inserted in all the through holes and the rusty nails were replaced with new nails, not with bolts, so as not to alter the original character of the route.
