Umantani Castle Ruins（Umantani-jo Ato）
Ruins of a yamajiro (castle built on top of a mountain) and a series of tatebori (vertical trenches made to defend a castle)
Takase Yogaisan Castle, also known as Umantani Castle, is said to have been built by a vassal of the Atagi clan, who had a powerful influence on the Kinan region (a southern part of Wakayama Prefecture) in the Middle Ages (15th–16th centuries). It was located on top of a mountain that is around 90 m tall, from which you can have a full view of the Tonda Plain. Numerous lines of long tatebori (vertical trenches) built for defense are one of the notable characteristics of this castle.
It is 50 minutes’ walk from JR Kii-Tonda Station to the top of the mountain where Umantani Castle used to stand.
Mifune Matsuri Festival – a Finale of the Kumano Taisha Grand Shrine Matsuri Festival (One of the Annual Grand Festivals Held at Kumano Hayatama Taisha Grand Shrine)
（Kumano Hayatama Taisha Reitai-sui, Mifune Matsuri）