Kamo shrines (賀茂神社)

The Kamo shrines — Shimogamo and Kamigamo — were placed on opposite banks of the Kamo River in 678 CE to form a spiritual barricade across Kyoto’s northeastern approach, the direction from which demons and misfortune were believed to enter the capital. For over thirteen centuries, this twin-shrine system has protected the city, and both remain UNESCO World Heritage sites today. What makes them exceptional is not their antiquity alone, but the precision of their cosmological positioning: Shimogamo sits at the confluence of two rivers, while Kamigamo occupies the upper reaches where the river descends from Mount Kōya — water and mountain joined in a single protective architecture.

The Kamo clan, who served as ritual specialists for the Yamato court, established worship at these sites long before Kyoto became the capital in 794 CE. Shimogamo Shrine (officially Kamo-mioya-jinja) was founded in the mid-6th century, while Kamigamo Shrine (Kamo-wake-ikazuchi-jinja) dates to 678 CE. When Emperor Kanmu moved the capital from Nara to Heian-kyō (Kyoto), the Kamo shrines were immediately designated as chokusaisha — imperial shrines receiving direct offerings from the emperor. The Saiō system, in which an unmarried imperial princess served as high priestess, began here in 810 CE and continued for nearly four centuries. Both shrines were rebuilt every few decades in accordance with the shikinen senzō tradition, ensuring architectural continuity across generations.

Shimogamo Shrine enshrines Tamayorihime no Mikoto, the mother of the thunder deity, alongside Kamo Taketsunumi no Mikoto, the founding ancestor of the Kamo clan. Kamigamo Shrine is dedicated to Wake-ikazuchi no Kami, the thunder god born from divine intervention at the Kamo River. Thunder in Shinto cosmology represents both destructive power and vital energy — the force that breaks open the sky and brings rain. Wake-ikazuchi is invoked for protection against calamity, success in endeavors requiring decisive action, and the breaking of stagnation. His messenger is the horse, and sacred white horses are still kept at Kamigamo and paraded during major festivals.

The birth of Wake-ikazuchi is recorded in the Yamashiro no Kuni Fudoki. Tamayorihime, while purifying herself in the Kamo River, saw a red arrow floating downstream. She took it home and placed it beside her bed. That night, she conceived a child without human union. The child was Wake-ikazuchi, born of lightning itself. When he came of age, his grandfather held a feast and told him to offer sake to his true father. The young god raised the cup to the sky, broke through the roof, and ascended in a thunderclap to Mount Kōya. His mother built a shrine at the mountain’s base — this became Kamigamo. The red arrow was the physical form of the deity Honoikazuchi, and some traditions identify it as a manifestation of divine fire descending to earth as rain.

Shimogamo sits within the Tadasu no Mori, a 12-hectare primeval forest that has remained undeveloped for over a thousand years. The approach passes beneath centuries-old keyaki and Japanese zelkova trees before reaching the vermilion Rōmon Gate. The shrine’s two main halls are built in the nagare-zukuri style, with extended eave lines that seem to flow like water. Kamigamo, three kilometers upstream, maintains the only extant example of heiden (offering hall) architecture from the Heian period. Its defining feature is a pair of conical sand mounds called tatezuna, placed before the main gate — symbolic of the sacred mountain and a purification device. Both shrines preserve the custom of aoi-gaki, the use of wild ginger leaves as sacred decoration, which gives the Aoi Matsuri its name.

• Aoi Matsuri (May 15) — One of Kyoto’s three great festivals, established in 544 CE after a famine was attributed to neglect of the Kamo deities. A procession of over 500 people in Heian-period court dress walks from the Imperial Palace to both shrines, led by the Saiō-dai, a woman chosen to represent the imperial priestess.
• Kamo Kurabeuma (May 5) — A horseback race held at Kamigamo since 1093 CE, originally commissioned by Emperor Horikawa as a prayer for rain.
• Mitarashi Matsuri (late July) — Participants wade through the Mitarashi stream at Shimogamo to purify themselves and light candles for health.
• Nagoshi no Harae (June 30) — A purification ritual marking the halfway point of the year, performed at both shrines with chinowa ring-passing.

Late April to mid-May, when the Aoi Matsuri preparations transform both shrines into stages of ritual theater. The Tadasu no Mori at Shimogamo is coolest in early summer, when the forest canopy is full and light filters green through the leaves. Autumn brings fewer crowds, and the keyaki trees turn bronze in November. Kamigamo is most atmospheric in winter, when snow outlines the tatezuna sand cones and the shrine appears as it did in 12th-century scroll paintings.