The Askhi Massif: Georgia's Wild Limestone Plateau

The Askhi Massif is a vast limestone plateau and mountain complex in western Georgia — the country in the South Caucasus — straddling the highlands of the Lechkhumi and Samegrelo regions (on the borders of Svaneti to the north and Imereti to the south), rising to about 2,520 meters at Gadrekili Peak. It is one of the most geologically distinctive and least-explored mountain landscapes in the country: a large karst plateau whose combination of limestone geology, alpine terrain, extensive cave systems, and sweeping views over the western Georgian lowlands gives it a character unlike any other highland destination in Georgia. While the country's mountain tourism concentrates on the Greater Caucasus — Svaneti and Kazbegi — Askhi offers a wilderness experience of comparable physical scale and far greater solitude, its remoteness and difficult access having spared it the crowds that have transformed the famous ranges.

What is the Askhi Massif?

The Askhi Massif is a large limestone (karst) plateau in the western Georgian highlands, on the borders of the Lechkhumi and Samegrelo regions, rising to about 2,520 m at Gadrekili Peak. It's known for three things: dramatic karst scenery (cliffs, sinkholes, limestone pavement); more than 80 documented caves, including ice caves; and vast panoramic views over much of western Georgia. The classic way to experience it is a demanding two-day trek across the plateau between the villages of Zubi and Kulbaki, through alpine meadow and shepherd pasture with a wild camp on top. Remote, largely unmarked, and water-scarce on the plateau, it's a route for fit, experienced hikers — best done with a guide — between roughly June and October.

The geology

Askhi's defining feature is its limestone geology and the karst landscape that water has carved from it over millions of years. Limestone dissolves in slightly acidic water, and the combination of the high rainfall of the western Georgian Caucasus with the massif's thick limestone has produced one of the most extensively karstified mountain landscapes in the South Caucasus. The surface shows it everywhere — sinkholes where the ground has collapsed into voids below, limestone pavement grooved and furrowed by dissolution, dramatic cliff faces exposing the depth of the rock, and the cave entrances that punctuate the plateau as gateways to the system underground.

The cave systems are among the most significant in Georgia, giving Askhi a scientific and speleological importance beyond its scenery. The massif holds more than 80 documented karst caves, some of considerable length and depth, with stalactite and stalagmite formations, underground rivers and lakes, and — in the higher, deeper caves where temperatures stay below freezing year-round — permanent ice formations. Speleological exploration here has continued since the Soviet period, and the system is not yet fully mapped; new passages and chambers are still being documented.

The plateau landscape

Above ground, the plateau is a landscape of real visual power — open limestone terrain, alpine grassland on the higher sections, sheer cliff edges where the plateau drops to the forested valleys, and extensive views over several regions of western Georgia at once. Its plateau character — the sense of being on an elevated, expansive tableland rather than climbing toward a single summit — gives Askhi a spatial quality unlike the more typically Georgian Greater Caucasus, where the terrain is more vertical and the valleys more enclosed.

The summer pastures are used by shepherds who bring cattle and sheep up from the valleys for the grazing season, and the seasonal shepherd huts — small stone and timber structures dotting the plateau where the pasture is good — add a human presence that deepens rather than diminishes the sense of remoteness. The interplay of natural limestone terrain, managed summer grassland, and the wild alpine zones above produces a landscape of considerable variety across the plateau's extent.

The views from the plateau edges are among the most extensive accessible from any mountain terrain in western Georgia. On a clear day they take in the Lechkhumi valleys, the Samegrelo lowlands, the Imereti hills to the south, and the higher Greater Caucasus ranges to the north — even, in the clearest conditions, a distant glimpse of the Black Sea to the west. When cloud inversions form over the western lowlands, the plateau can stand clear above a sea of cloud filling the valleys below — the Gomismta-and-Bakhmaro experience, but at higher elevation and with a far more open landscape around it.

The main trekking route: Zubi to Kulbaki

The established crossing of the massif links the village of Zubi (east) with the Kulbaki area (west), traversing the plateau and giving access to the full range of its landscapes over a route of roughly 25–35 kilometers, depending on the line taken and detours to viewpoints and cave entrances. It's usually done as a two-day trek with a night camped on the plateau, though strong, experienced hikers with an early start and no major detours can do it in a single long day.

The structure is essentially a steep climbing day and a long descending day. The approach from Zubi climbs through forest before emerging onto the plateau — the most sustained physical effort of the route, with the climb alone gaining on the order of 1,600 meters. Once up, the plateau crossing moves through more varied terrain — open grassland, limestone pavement, cliff-edge viewpoints, and the ground around the more accessible cave entrances — at a pace that lets you engage with the landscape rather than just cover it. The descent toward Kulbaki drops back through forest to the Kulbaki lakes (the Green and Babushkino lakes, at much lower elevation), where there's a trout farm and a cottage — a welcome end point after the wild camp above. The total elevation gain over the full route can exceed 1,600 meters depending on the configuration.

The crossing demands a genuine baseline of fitness and proper mountain preparation: sturdy footwear for limestone that can be sharp and uneven; the capacity to carry enough water, since surface water is scarce on the plateau itself (what little exists should be boiled or filtered); camping equipment for the overnight, as there's no accommodation on the plateau; and weather-appropriate clothing for conditions that can swing from warm summer sun to cold cloud and rain in a single afternoon.

Navigation, conditions, and safety

The trail marking on Askhi is inconsistent and insufficient for confident independent navigation across the full crossing, and this is what most clearly separates it from Georgia's developed hiking destinations. The terrain isn't technically difficult in a mountaineering sense, but the karst topography — sinkholes, limestone pavement, and open grassland that gives no visual cue to the right line — is complex enough that crossing it without detailed route knowledge or GPS with downloaded tracks requires real experience and comfort with uncertain ground. A local guide with specific knowledge of the Askhi routes is strongly recommended for anyone unfamiliar with the plateau; guiding services in the Lechkhumi region and in Tbilisi run organized Askhi crossings that handle navigation and logistics.

A specific condition warning: avoid the route in rain or fresh snow. The Zubi side has clay soil that turns to deep, sticky mud, and the Kulbaki side has slippery slopes — both genuine slip and footing hazards when wet, not just discomforts. Combined with the navigation difficulty and the exposure on the plateau, this makes settled, dry weather important for a safe crossing. In winter, conditions make independent travel here genuinely hazardous.

Combining with other routes

Askhi rewards combination with the wider Lechkhumi–Samegrelo highlands. It can be linked with the Lebarde resort and the Tobavarchkhili lakes to the north (a longer multi-day traverse — the full Lebarde-to-Zubi route runs around five days), with the Akhalchala reserve, and — descending the western side — toward the Okatse and Martvili canyons and the Kinchkha area. For experienced trekkers, Askhi is a centerpiece for a longer western-Georgia mountain itinerary rather than only a standalone crossing.

Getting there and when to go

• Location: Western Georgian highlands, Lechkhumi/Samegrelo border; eastern approach from Zubi, western from the Kulbaki area, both reachable from Tsageri (the Lechkhumi regional center), roughly 5 hours from Tbilisi via Kutaisi.
• Getting there: Secondary mountain roads to the trailheads, conditions varying with season and weather; a vehicle with reasonable ground clearance is advisable. Doable self-organized for experienced, well-equipped hikers, or as a guided crossing.
• When to go: Roughly June–October, with July–September the most reliable for snow-free terrain, stable weather, and accessible roads. The plateau can hold snow into June; October brings the first autumn systems and cold, wet risk on the exposed limestone. Surface trekking is firmly a summer/early-autumn activity — winter is hazardous. (Caves are potentially accessible year-round for equipped speleologists.)
• Difficulty: Demanding multi-day trek; significant elevation gain; unmarked; remote. For fit, experienced hikers — guide strongly recommended.