A friend and I will be bicycle touring in Japan for the month of October (fly into Tokyo, probably ride over to Fuji and back? He's making it up as he goes).
Do you know what their, eh, policy is about using hammocks? I'd much rather use my hammock tent if it won't be an issue.
Also, do you know of any rules or regulations that are unique to Japan? The word on the street is that bicycle bells are required.
I have toured in Japan a few times now, and spent in total about 2 years in Japan, so I know all about the rules/laws.
Camping anywhere in Japan except for designated camping sites that you normal need to pay for is illegal in Japan. However, if you camp somewhere that won’t annoy anybody nobody will care, not even the police. River banks and local parks (after the kids have gone to bed) are good places. You might be able to use a hammock, but it will severely restrict the places where you can set up camp.
Laws in Japan that are enforced:
You don’t need a helmet unless you’re under 12 years’ old.
You can’t ride drunk.
At night you must have a front light and a rear reflector.
Laws in Japan that are not enforced:
You must have a bell.
You are not allowed to ride on the sidewalk, unless there is a sign saying you can but they are rare.
Your bicycle must be register with your local prefecture.
Also if you are going to take the train, they are very stricked about your bike being packed “Rinko”
Hope this all helps, have fun, and try Katsudon.