Further east the road reaches Wangdue Phodrang where there a 7th-century monastery on the ridge, and the valley is drained by the Punatsangchu River.

The hill slopes around the pass are festooned with a profusion of colourful religious flags fixed by the Buddhist people as a mark of veneration.

The flags, made in five colours representing the natural forces, — "blue (sky), white (clouds), red (fire), green (water) and yellow (earth)" – are inscribed with Buddhist scriptural prayers to usher prosperity and peace around the country.

[7] Another fragrant plant, which people come to enjoy, is the Daphne which is a small shrub which blooms with white flowers amidst an array of prayer flags that are fixed on the slopes.

[10] These were built as a memorial in honour of the Bhutanese soldiers who were killed in the December 2003 battle against Assamese insurgents from India.

At the next stage as the height of chortens increased, images of Buddhist gods made of clay stuffed with papers inscribed with prayers were interred.

The pole was painted in red colour and inscribed with sacred hymns and banded with religious paraphernalia such as gilded images of gods, prayer bells, small clay stupas, and also precious stones and jewellery.

A few of the paintings relate to the fourth king fighting Indian rebels in the forest, monks with laptop, and a Druk Air plane.

A special Tsechu was composed for the occasion by Dasho Karma Ura which involved costumed mask dances.