Daiju-ji Temple (Tokugawa Memorial Temple with Vista Line)

The formal name of the temple is Jōdōzan Shōan'in Daijuji. It was founded in Bummei 7 (1475) by Matsudaira Chikamitsu (the fourth-generation head of the Matsudaira clan) as the founding patron (kaiki), with Seiyo Gutei as the founding abbot (kaisan). An alternative founding year of Ōnin 1 (1467) has also been proposed. As the family temple of the Matsudaira clan, it received the patronage of successive generations. According to tradition, after the Battle of Okehazama, Tokugawa Ieyasu retreated to this temple and was saved by the abbot, giving rise to the story of the phrase 'Onri Edo, Gongu Jōdo' ('Depart from the impure world, yearn for the Pure Land'). The third Shogun, Tokugawa Iemitsu, began major construction in Kan'ei 13 (1636), arranging the temple complex so that Okazaki Castle's keep was visible through the main hall, the sanmon gate, and the sōmon outer gate, with the intention of 'being able to gaze upon the birthplace of my grandfather.' This sightline is what is now called the Vista Line. Wikipedia (Japanese) 'Daijuji', Okazaki City Official 'Vista Line'.

The concept of the Vista Line derives from the word 'vista' (meaning view or prospect), and the approximately 380-year-long preservation of this sightline has been maintained through the voluntary restraint of local residents in not constructing tall buildings along the line. Subsequently, in 2012 (Heisei 24), the Okazaki City Landscape Plan was formulated to provide a legal basis, and in 2018, the height restriction was upgraded from an advisory recommendation to an enforceable order. Daijuji Elementary School, located on the Vista Line, installed an underground passage instead of an overhead connecting corridor between the school building and the pool, as the corridor would obstruct the view. The life-size memorial tablets are also an apparatus for visualizing the legitimacy of the Edo Shogunate — an expression of a mausoleum culture that symbolically concentrated the bodies and souls of the shoguns in one place. Okazaki City Official 'Vista Line', Wikipedia 'Daijuji'.

Okazaki City and the Okazaki Tourism Association actively promote the Vista Line as a landmark cityscape, and metal bolts inscribed with 'Vista Line' (5 cm in diameter) have been installed at 92 locations along roads on the line. The official tourism website 'Okazaki Odekake Navi' describes the view as 'like a painting in a frame' and positions it as a shared historical asset of the community. Okazaki Odekake Navi 'Daijuji', Okazaki City Town Planning Division.

Morning (9–11 AM) on a clear day is optimal. Standing at the sightline marker in front of the sanmon gate, one can confirm Okazaki Castle keep in the vista. The surrounding foliage adds visual richness during the autumn color season (November). Expect crowds during the New Year period and during NHK historical drama broadcast seasons.

The standard composition is to stand at the 'Vista Line bolt' position in front of the sanmon gate and frame Okazaki Castle keep in the center of the sōmon outer gate opening. A telephoto lens (200mm or longer) is recommended. Photography restrictions may apply in the memorial tablet hall; confirm at the reception before shooting.

The car park is paid (¥500/hour, ¥200/30 min thereafter). The precinct is free, but entry to the treasure hall and main hall requires an admission fee. Photography restrictions exist in certain areas; follow posted guidance.