appropriate footwear (such as walking shoes or sneakers)
sun protection, including sunscreen, lip balm/lip sunscreen, sunglasses, a hat with a visor and clothing that fully covers your arms and legs
warm clothing, including a hat, gloves and thick socks, if your tour will take place on Mt Fuji, on a cold day or early in the morning outside the warmest months
enough Japanese yen in cash to cover the cost of any items you may choose to buy, such as food, drinks and souvenirs
your passport or Japan residence card (one of which you are required by law to carry with you at all times unless you are a citizen of Japan)
optionally, an extra set of clothing in a plastic bag, in case you get wet due to rain or sweat
optionally, a sweatband and/or a small cloth to wipe sweat from your face
optionally, cycling shorts or pants with crotch padding and a pair of gloves with palm padding for comfort on long bike rides