Arrival at Paro and drive to Thimpu through some sightseeings as per your convenience.
Visit the view point of Thimpu, the national animal Takin, Zilukha nunnery and the ThimphuDzong, and if you want you can also do a hiking through the pine forests with some sightseeing as well.
Drive to Punakha through Dochula Pass. Visit the Chimi Lhakhang Monastery (Fertility monastery) at the later part of the day, also visit beautiful Punakha Dzong/Fort which is built at the confluence of the two rivers, the Mo-Chu and Pho-Chu.
This day you do the sightseeings of Punakha. You can visit the monasteries, do some hiking or for more adventure lovers, you have the options for rafting in the Po-Chu and Mo-Chu rivers.
On this day you drive from Punakha to Paro after visiting the national muesuem, Paro Dzong, Paro town and the Kichu monastery.
Paro sightseeing on day 6. You can do a hike to the Taktsang Monastery, visit the archery grounds.
On this day you can drive to the Haa Valley through Chelila Pass. Haa Valley is one of the furthermost valleys of Bhutan bordering Tibet.