During certain period of time, other than the normal local buses, there is also the Aikawa Sightseeing Circular Bus (known as Gururin bus) available.
It is a great deal and convenient for those spending a day in the Aikawa area!
Price:
Adult 200 yen / Child 100 yen per ride
Adult 500 yen / Child 250 yen unlimited ride for a day
Family pass 1000 yen (unlimited ride for a day; up to 5 pax)
Usage:
For those who have purchased the 1-day, 2-day or 3-day bus pass, you will also be able to use it for this gururin bus!
Period Available:
-> Weekends and public holidays during the month of July
-> Everyday during the month of August
Bus Timetable:
http://sado-bus.com/wp/wp-content/uploads/2016/04/平成28年度-相川循環バス-ダイヤ.pdf
Major bus stops:
佐渡金山 (Sado Gold Mine)
大立竪坑 (Odate Shaft)
佐渡版画村前 (Sado Woodblock Print Museum)
相川郷土博物館前 (Aikawa Folk Museum)
大間港前 (Oma Port)
佐渡市相川支所 (Sado City Aikawa Branch Office)
大工町・京町入口 (Entrance to Kyomachi-dori Street)
Sado Island Travel Guide 