Quick answer
The Sigiriya boulder gardens are a cluster of huge natural boulders at the foot of the rock, linked by winding paths and adapted into caves, shrines and platforms. Key sights are the Cobra Hood Cave, an overhang shaped like a cobra's hood with a Brahmi inscription from roughly the 2nd century BCE, the Audience Hall rock with its carved seat, and the Asana chapel. Allow 20 to 30 minutes before the main climb.
Key takeaways
- The Sigiriya boulder gardens lie between the water gardens and the terrace gardens at the foot of the rock.
- The Cobra Hood Cave is named for its overhang shaped like a cobra's hood and carries a Brahmi inscription from roughly the 2nd century BCE.
- The Audience Hall rock has a flat top with a large carved seat, sometimes described as a throne.
- Rows of cut grooves and sockets on the boulders show where brick and timber structures once stood.
- Monks lived in the boulder caves before and after Kashyapa's reign of roughly 477 to 495 CE.
What the Sigiriya boulder gardens are
The Sigiriya boulder gardens are a zone of enormous natural boulders at the foot of the rock, where the formal water gardens end and the climb begins. Paths wind between them, sometimes squeezing under overhangs and sometimes passing through natural arches formed where two boulders lean together.
The boulders were not moved or arranged. Kashyapa's builders worked with them where they lay, cutting steps, platforms and wall sockets into the rock, and in some places building brick structures on top. The result is a garden that feels natural because it largely is.
The Cobra Hood Cave
The Cobra Hood Cave is the best-known feature of the Sigiriya boulder gardens. Its overhanging rock curves forward in the unmistakable shape of a cobra's spread hood, sheltering a floor that was used as a monk's cave.
Below the drip ledge is an inscription in early Brahmi script, usually dated to roughly the 2nd century BCE, recording the cave's donation to the sangha. Traces of painted plaster survive on the ceiling. Look for it in low morning light, when the shallow inscription is easiest to read.
- →Overhang shaped like a cobra's hood.
- →Early Brahmi inscription, roughly 2nd century BCE.
- →Traces of painted plaster on the ceiling.
- →Best read in low morning light.
The Audience Hall rock and the Asana chapel
The Audience Hall rock is a large boulder whose top has been cut flat, with a long carved seat along one side. It is often described as an audience hall or throne platform, though its original use is not certain. Sockets around the edge show that a roofed structure once stood on it.
The Asana chapel nearby holds a carved seat, or asana, of the kind used in Buddhist shrines to represent the Buddha's presence. Together they show how royal and religious uses overlap in this part of Sigiriya.
- →Audience Hall rock: flat-topped boulder with a long carved seat.
- →Sockets around the edge show a former roofed building.
- →Asana chapel: a carved seat of the Buddha, a religious shrine.
- →The mix of royal and religious features is typical of the boulder gardens.
Reading the grooves and sockets
Almost every large boulder in the Sigiriya gardens carries cut marks: long grooves, lines of square sockets and small flights of steps. These are the anchors for walls, beams and floors of buildings that have long since disappeared.
Once you notice them, the boulder garden changes from a natural jumble into the footprint of a small settlement. It is one of the more rewarding things to ask a guide to point out, because it shows the scale of what once stood here.
From the boulders to the terrace gardens
Above the boulder gardens, the Sigiriya path climbs through the terrace gardens, a series of brick-and-stone terraces built around the base of the rock. From here the stairs begin in earnest, and the shade ends.
Use the boulder gardens as your last cool stop. Drink water here, adjust your pace, and let any slower members of the group set the rhythm, because from this point the climb to the fresco gallery is steady and exposed.
- →The terrace gardens sit between the boulders and the rock face.
- →The shade largely ends above the boulder gardens.
- →Drink water and regroup before the steady climb begins.
Seeing the boulder gardens properly
Most visitors spend five minutes in the Sigiriya boulder gardens. Twenty to thirty is better, and it is easiest on the way up, at opening, when the light is low and nobody is pushing behind you.
Lankan Stays & Trails guides take the boulder gardens slowly for exactly this reason. It is where the monastic and royal stories of Sigiriya overlap, and where the site makes the most sense.
Frequently asked questions
What is the Cobra Hood Cave at Sigiriya?
The Cobra Hood Cave is a natural rock overhang in the Sigiriya boulder gardens shaped like a cobra's spread hood. It was used as a monk's cave and carries an early Brahmi inscription from roughly the 2nd century BCE, with traces of painted plaster on its ceiling.
What are the boulder gardens at Sigiriya?
The boulder gardens are a zone of huge natural boulders at the foot of Sigiriya, between the water gardens and the terrace gardens. Paths wind between them, and the boulders were adapted into caves, shrines and building platforms.
What is the Audience Hall at Sigiriya?
The Audience Hall is a boulder in the Sigiriya boulder gardens whose top was cut flat, with a long carved seat along one side. It is often described as an audience hall or throne platform, though its exact use is uncertain.
How long should I spend in the Sigiriya boulder gardens?
Twenty to thirty minutes is enough to see the Cobra Hood Cave, the Audience Hall rock and the Asana chapel and to notice the carved sockets on the boulders. Most visitors spend far less and miss most of it.
Are the boulder gardens older than the rest of Sigiriya?
Parts of them are. Monks lived in the boulder caves from roughly the 3rd century BCE, centuries before Kashyapa. His builders later adapted the boulders into his city plan, and the monks returned after his death in 495 CE.
Is there shade in the Sigiriya boulder gardens?
Yes, some. The boulder gardens are the last shaded part of the Sigiriya climb, with overhangs and trees. Above them, on the terrace gardens and the rock face, there is very little shade, so use the boulders as a rest stop.