Tokyo Opera City Sankun Garden( where a big metal statue is :Basement 1st floor of Tokyo Opera City) . It is directly connected from EAST exit of Hatsudai Station. The tour operator will mail you a detailed direction PDF file and other important information right after the booking confirmation.
You can cancel up to 24 hours in advance of the experience for a full refund.
As long as you can ride a bike and can last a 7 hour day on bike and on foot, you'll be fine.
We are NOT avid cyclists so rest assured you can do it too!