Atomicxxx: To backpack in Japan, you must come from a 'friendly' country that is allowed to enter Japan without any special visas. Those countries include the England, Ireland, Scottland, USA, Australia and Canada just to name a few. The vast majority of other countries (Middle-East, South-American, Asian) require a special visa that you must first apply for in your country of origin.
You will have to check into your local Japanese embassy to see if you quality for a special visa, or if you can just hop a flight and go on over.
You -CAN- take a boat. You know the old expression "slow-boat to China"? Well it's something based off of truth. You can pay a nominal fee and take a cargo-ship. It's certainly not luxury, but you have a private cabin with bathroom, shower, etc and typically are allowed to wander the ship. Be prepared for copious amounts of boredom though as it will typically take 40 days.
You will have to check into your local Japanese embassy to see if you quality for a special visa, or if you can just hop a flight and go on over.
From California. It's not some irrational fear. You'd never know it to look at me, I don't sweat or anything, I just don't trust planes. I'm not so worried about time since if I go it'll be for an extended period.
You -CAN- take a boat. You know the old expression "slow-boat to China"? Well it's something based off of truth. You can pay a nominal fee and take a cargo-ship. It's certainly not luxury, but you have a private cabin with bathroom, shower, etc and typically are allowed to wander the ship. Be prepared for copious amounts of boredom though as it will typically take 40 days.