Daio Sugi (大王杉) is one of the giant cedar in Yakushima Island. It is 24.7m tall and 11.1m girth. It was used to be the largest Yakusugi in Yakushima. It is about 3,000 years old Yakusugi. Daio means the King of Cedar.

Access
0. at any bus stop very early in the morning (4am)
1. use shuttle bus to Yakusugi Shizenkan.
2. use shuttle bus to the entrance of Arakawa Tozando.
3. walk 2 hours.