Multipitch Atlas

Medo

Velika stena (Big Wall), right side · Osp · Slovenia

Read the cautionsBail with caveatsBolting confidence: high

The easiest line on Osp's famous overhanging Big Wall, following an obvious right-slanting ramp, the only non-overhanging part of the face. It is in shade until about 11:30 in July.

Climber finishing the third pitch of Medo, Velika stena, OspPhoto: Borut · CC BY-SA 3.0

Photo

Climber finishing the third pitch of Medo, Velika stena, OspPhoto: Borut · CC BY-SA 3.0
Hardest pitch
5c
Pitches
4
Length
110 m
Approach
20 min
Aspect
SW
South-west-facing
Rope
1×70 m or 2×50 m
Read before you go

Fully bolted and open, but pitch 1 is run-out and a little loose, and the wall immediately to the right is closed, so check current restrictions locally.

The route

Overview

The easiest line on Osp's Big Wall (Velika stena), a 110 m face better known for its huge overhangs and 7th and 8th grade multipitches. Medo takes the only non-overhanging part: an easy pedestal to a big terrace, a rightward traverse along a ledge and ramp, then a corner, a flake and a final crack to the plateau. It is fully bolted with 10 mm bolts plus a few of the original pegs. The grades are honest and the setting is leafy but the climbing itself is clean. It is a classic 1979 line that was later retro-bolted, and it is the right-most route on the wall that is open to climbing.

The climbing

Pitch by pitch

Pitches of Medo
PitchGradeLengthNotes
P1435 mClimb the very short corner (one bolt), exit left, go straight up for about 25 m and move right onto the terrace behind a big flake. Belay on a large glued chain with rings on a spacious terrace. Planetmountain grades it II to IV and calls it a little loose with little protection, over only 20 m; the Spanish camptocamp text gives grade 3 and 30 m. One or two cams can be placed.
P25b30 mFrom the right end of the terrace make a delicate first move, then traverse rightwards along a fine ledge for about 15 m, crossing the bolt lines of modern routes that go straight up. Do not follow those. Where the ledge ends, go up and right into a corner and on to a comfortable two-bolt belay just after the second tree. Planetmountain grades it V+ and V (about 5a to 5b) and noted one bolt without a hanger near the end of the ledge.
P35c30 mA few metres right, then an awkward slab and corner slanting left (bolts and pegs), a short reachy corner, and a big flake or small pillar with a long move. Exit by an exposed traverse left to a tree. Comfortable two-bolt belay. Planetmountain grades it V+ and VI- and suggests a Camalot 3 for the long move if you are at your limit.
P45c30 mSlightly left up a cracked slab to a short steep corner, then straight up on easier ground. The final crack is the 5c crux and leads to a ledge a few metres below the plateau, with a two-bolt belay or chain. Planetmountain grades the sections V, VI, IV and V+. An easy scramble leads onto the plateau.

Getting there

Approach

To the parking

Osp is a small village in south-west Slovenia, a few kilometres from Trieste and Koper, close to the Črni Kal exit of the A1 motorway from Ljubljana. Park at the climbers' car park next to Camp Vovk in the southern part of the village (small fee), or at the car park below Mišja peč about 500 m before the village. Do not park in the village itself. Camptocamp lists no public transport service.

On foot · about 20 min

15 to 20 minutes. From the bridge just after the south-east entrance to the village, before crossing the stream, take the made path on the left bank towards the big wall; do not fork right. Pass the cave (Pajkova streha) and continue rightwards up a steep path along the foot of the wall. The path becomes much fainter near the start. The route begins at the foot of a rocky pedestal among trees, shared with several routes: a short, slightly hidden corner with a sign about peregrine falcon protection. The name shown at the start is 'Internacionala', not Medo.

Finding the route · 2 photos

  • OverviewThe Velika stena (big wall) above Osp with the large cave at its foot. Medo is on the right-hand side of the wall, reached by the steep path that continues rightwards past the cave.Photo: Borut · CC BY-SA 3.0
  • Start of the routeThe start of Medo (belay R0): a short, slightly hidden corner in the rocky pedestal among the trees.Photo: Borut · CC BY-SA 3.0

Approach photo

Map of the walk-in

  • Crag
  • Parking

Loading map

The point marks the crag, not the exact start of the route.

Coordinates · crag

45.57133, 13.86274

Parking

45.57054, 13.85649

Osp (camping) (camptocamp access point)

Point from camptocamp waypoint 805693

For your phone or watch

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Contains the route point and parking. Opens in most mapping apps and GPS watches.

Points are compiled from published sources, with the precision stated above. They were not surveyed on the ground: check them against a current topo.

Getting down

Descent

On foot: on the plateau walk straight ahead (north), then left to join the marked path, and follow it leftwards down past the Babna sector to the village. 30 to 40 minutes. By abseil, as described by Planetmountain: from the top make a 10 m abseil to the ledge a few metres from the last belay (to the right looking down). From there, with two ropes, use the line equipped with a large ring: 25 m (intermediate stance possible), then 50 m (intermediate stance possible, with a big pendulum) to the terrace at the top of pitch 1, then 30 m to the ground. With a single rope, use instead the abseil stations of the sport route Špargelj direkt, about 5 m left of the big ring. Camptocamp mentions 3×30 m but marks it as unverified.

Retreat

Bailing off the route

Bail with caveats

You can retreat easily from the top of pitch 1, where a large glued chain with rings sits on a terrace 30 m above the ground. Higher up it is less clear. Pitch 2 traverses about 15 m right along a ledge, the belays above are two bolts, and the equipped abseil line is a separate line that needs two ropes and includes a 50 m abseil with a big pendulum.

Retreat from
R1 (chain and rings, 30 m to the ground). The big-ring abseil line and the stations of the sport route Špargelj direkt also come down to this terrace. Retreat from R2 and R3 is not described.
Point of no return
Not stated by any source. By inference, the pitch 2 ledge traverse is the step that makes going back awkward; beyond it the top and the 30 to 40 min walk-off are two or three pitches away.
Carry
From R1: a 70 m single or 2×50 m. From higher: 2×50 m, plus maillons or karabiners and cord for the two-bolt belays.
Basis
Part stated, part inferredcamptocamp states the chained R1 and two-bolt belays above, and Planetmountain (via the guide) gives the abseil line lengths; that R2 and R3 are awkward to retreat from is inferred from the traverse, and all routes to the right of Medo are closed.

Partly inferred from the route facts

Safety

Hazards

  • Access restriction: all routes to the right of Medo are closed to climbing. Medo is the right-most route on the Big Wall that may be climbed and used for descent (warning posted on plezanje.net in November 2021 and repeated on camptocamp). theCrag advises checking at Camp Vovk or with local climbers whether the right-hand sector is open.
  • A sign at the start concerns peregrine falcon protection. Read it and follow any dated restriction on it.
  • Pitch 1 is easy but sparsely protected and a little loose.
  • Pitch 2 crosses harder bolted routes that go straight up. Stay on the ledge traverse.
  • Exposed traverse at the end of pitch 3, and a long reach on the pillar below it.
  • The two-rope abseil line includes a 50 m abseil with a large pendulum. A single rope does not reach on that line.
  • Planetmountain (2013) noted one bolt without a hanger at the end of the pitch 2 ledge.

Sun and weather

Conditions

South-west to west facing at only 50 to 230 m altitude. The route stays in full shade until at least 11:30 in mid-July, so it is climbable on a hot summer morning; a party did it from 9 to 11 am in very hot weather. Camptocamp lists September to June as the season for the wall. Allow about 2 hours of climbing.

Usual season · Jan to Apr, Oct to Dec

Sun on the wall · SW-facing

Working out the sunlit hours for this month.

  • January (usual season): not yet worked out
  • February (usual season): not yet worked out
  • March (usual season): not yet worked out
  • April (usual season): not yet worked out
  • May: not yet worked out
  • June: not yet worked out
  • July: not yet worked out
  • August: not yet worked out
  • September: not yet worked out
  • October (usual season): not yet worked out
  • November (usual season): not yet worked out
  • December (usual season): not yet worked out

Sun on the wallDaylight, wall in shade● Usual season

Estimated from the wall's aspect only. Ignores surrounding terrain, gullies and the wall's exact shape. Clock times are local to the wall (Central European time), for the 15th of each month.

Monthly climate averages for Osp, 1991-2020
MeasureJan (usual season)Feb (usual season)Mar (usual season)Apr (usual season)MayJunJulAugSepOct (usual season)Nov (usual season)Dec (usual season)
Mean daily high °C781216202427272217128
Mean daily low °C114812161818141062
Rain days 1 mm or more99101112108911121310
Sunshine hours a day6.07.59.110.611.912.913.312.310.28.06.05.4

● marks the usual climbing season. Averages for 1991-2020 at about 224 m. Area climate from Open-Meteo reanalysis (about 10 km grid): the wall and valley can differ. Data: Open-Meteo, CC BY 4.0.

What to carry

Gear

12 quickdraws and a few slings. One 70 m rope, or better two 50 m ropes if you plan to abseil. Optional: one or two small to medium cams for pitch 1 and a Camalot 3 for the long move on pitch 3. Helmet.

Checklist

Quickdraws
12
Rope
1×70 m or 2×50 m
Helmet
One each
Abseil device and prusik
The descent or the retreat involves abseiling
Maillons or spare karabiners
To leave behind if you retreat
Cord
Mentioned for retreat

Derived from the route data; check it against a current topo

From climbers

Reader reports

Reader reports are not being collected yet. Until they are, check a current topo and the local club or guidebook publisher for recent changes to Medo.

Worth knowing

Tips

  • Walking off is simple and avoids the pendulum abseil.
  • Start early in summer to stay in the shade.
  • Camp Vovk in the village is open all year and is the place to ask about current closures.
  • Do not camp under the wall or park in the village; relations with residents depend on it.
  • The route Prečenje, a much harder traverse line, starts from Medo's first belay; do not follow it.

Open questions

Where sources disagree

  • Pitch 1: grade 4 and 35 m (camptocamp French), grade 3 and 30 m (camptocamp Spanish), II to IV and 20 m (Planetmountain). This entry follows the French text, which is marked as updated.
  • Grades: camptocamp gives French grades 4, 5b, 5c, 5c; Planetmountain gives UIAA VI overall with V obligatory; the Planetmountain crag table lists Medo as 5b. plezanje.net lists four pitches and 110 m.
  • Abseil descent: camptocamp suggests 3×30 m but flags it as unverified; Planetmountain details 10 m, 25 m, 50 m and 30 m with two ropes. This entry follows Planetmountain.
  • Walk-off time: 30 minutes (camptocamp Spanish) versus about 40 minutes (camptocamp French).
  • Approach time: 20 minutes on the camptocamp route page, 15 minutes on its sector page and on Planetmountain. This entry uses 20.
  • Cams: camptocamp suggests one or two small to medium cams for pitch 1; Planetmountain suggests a Camalot 3 for pitch 3. Both call them optional.

Provenance

Sources

Around 5c · about 4 pitches

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Compiled from published sources and last verified October 2026. Bolts, anchors and access change. Climbing is dangerous and you are responsible for your own decisions: check a current topo and read the disclaimer.