How fairy chimneys formed: volcanoes, tuff and erosion

Fairy chimneys formed in three steps: volcanoes covered the plateau with ash and ash-flow deposits, the deposits hardened into soft rock called tuff with harder layers on top, and water, frost and wind then wore the plateau away, leaving columns where a harder cap shielded the softer rock below. This guide explains the steps in plain terms, shows the Nevşehir weather that keeps the erosion going and says why the same rock could be carved into rooms. It gives no ages for any particular chimney, because none is certain.

Fire first: the eruptions

The plateau sits among volcanoes. Mount Erciyes, near Kayseri, rises on the eastern side and can be seen from Uçhisar: Karlık Cave Suite lists a view of it. Mount Hasan stands to the south-west, near Aksaray, and the Melendiz group lies between. Over several million years, from the late Miocene into the Pliocene, repeated eruptions spread ash and glowing ash flows across the land.

Ash that settles and hardens becomes tuff, and the deposits made by ash flows are called ignimbrite. The key point is that the layers were not alike. Some were softer, some harder; in places lava flows or harder ignimbrite lay on top. A landscape built that way is ready to be carved by something else.

Water, frost and wind: the carving

Rivers and rain cut valleys into the plateau, and the shape of the valleys follows the soft layers. Frost does the fine work. Water that seeps into cracks freezes, expands and splits the rock, and thaws again, and the cycle repeats. The Nevşehir averages show where that happens:

Month	Average high	Average low	Rainy days	Precipitation
December	6.2 °C	−1.3 °C	12.3	48.4 mm
January	4.0 °C	−3.6 °C	12.3	45.4 mm
February	5.5 °C	−2.6 °C	12.1	41.1 mm
March	10.3 °C	0.7 °C	13.1	48.1 mm
July	28.5 °C	13.7 °C	2.3	9.4 mm

Source: Turkish State Meteorological Service (MGM), Nevşehir, 1959–2025. In December, January and February the average day ends below freezing and starts above it, so in the average winter the rock is wet and then frozen, again and again. The snow record is 64 cm, on 2 February 1992. In July the same rock bakes and dries, with about 9 mm of rain. Wind carries away the loose grains. None of this is fast, but it does not stop.

Why a chimney stands

Where a block of harder rock lies on softer tuff, it works as a roof. Rain runs off the cap and wears away the ground around it, and the rock under the cap is spared. As the surroundings erode, a column is left with the cap on top: a fairy chimney. Where there is no cap, the same slope erodes into a smooth cone. When a cap finally falls, the column below weathers much faster. That is why you see chimneys of every height and why some wear shapes that look like mushrooms or hats.

Different valleys show different stages. Love Valley is walked for its tall columns, Paşabağ for chimneys with several caps and Devrent for shapes that look like animals.

Why people could carve it

Fresh tuff is soft enough to cut with simple tools yet firm enough to stand as a room. People carved houses, storerooms, dovecotes and churches into it for centuries, and the same rock makes a cave hotel; what is a cave hotel describes the result, and the rock churches guide the oldest uses. The softness has a cost. The same erosion that shaped the chimneys cracks old rooms, and rockfall is the reason usually given for the evacuation of rock settlements such as Zelve.

What the hotel records say

Eight of the 80 records mention fairy chimneys, one only in its name. Local Cave House says seven fairy chimneys stand around it, and Panoramic Cave Hotel says its rooms sit inside natural caves and fairy chimneys. Travellers Cave Hotel has hilltop terraces facing them, and Flavia Cappadocia Hotel is described as close to them. No record gives an age or a height for any chimney; ask your hotel which ones it stands beside.

What carved rock means for a stay

Many cave rooms are cut into the same tuff, and rock is usually said to hold a steadier temperature than a thin-walled building. The records do not measure this, so treat it as a general expectation and not a promise. What they list is equipment:

Amenity ticks in the 80 records	Records
Air conditioning	48 (35 of the 54 cave hotels)
Heated floors	4: Nujel’m Cappadocia, The Calypso Cave, Vita Cave Suites, Zara Cave Hotel +10
Fireplace rooms (amenity tick)	1: Leda Stone House

The texts go further than the ticks: Kayata Cave Suites lists heated floors among its highlights, Local Cave House calls its rooms heated and air-conditioned, and Seki Cave Hotel says each of its 16 rooms has a fireplace. No record gives a room temperature. The January average low is −3.6 °C (MGM), so in winter ask how a room is heated, and in July ask how it is cooled.

Seeing them safely

• Stay on paths and behind fences. Soft rock cracks and falls; a fenced area is closed for a reason.
• Do not climb, lean or carve. A chimney’s cap protects it, and a climber can break it.
• Choose your light. Low sun brings out the colour in the tuff, early and late in the day.
• Watch the season. Ice and wet clay are slippery from December to March, and July heat has no shade.
• Wear shoes with grip. Paths in the valleys are uneven.

Where to stay

For a base among the formations, Local Cave House has 12 rooms around seven fairy chimneys, heated and air-conditioned, with a pool cut into the rock. Panoramic Cave Hotel has a sun terrace over the chimneys and rooms in natural caves. Travellers Cave Hotel has hilltop terraces facing them. Soho Cappadocia, pictured at the top, has a garden, a bar, a hot tub and a seasonal pool. After choosing, you can book through gocappadocia.com, the regional booking platform created through the combined efforts of 175 Cappadocia hoteliers, with a best-price guarantee; this guide takes no commission.