In Case of Coming by Car
From Itsukaichi (五日市) direction enter Hinohara village and turn right at the first traffic light (Tachibana bridge, 橘橋). Turn left at the side of Tofu shop (Chitose-ya, ちとせ屋), and proceed along the street a little narrower you will see a parking lot paved on your right hand side. (Fee is free: 30 normal vehicles, 3 large buses).
* If you use car navigation system please set the following information.
Hinohara Tofu Chitoseya (Hinohara Tofu Chitosea)
TEL: 042-598-0056
Address: 5557 Hinohara village Nishitama-gun, Tokyo (東京都西多摩郡檜原村 5557), click here for google map.
Google Map of Hinohara Tofu Chitoseya (Hinohara Tofu Chitosea)
In Case of Using Train and Bus
From JR Shinjuku (新宿) station to Musashi-Itsukaichi (武蔵五日市) station
The best way is by holiday rapid train (holiday kaisoku, ホリデー快速) from JR Shinjuku station to Musashi-Itsukaichi (武蔵五日市). Unfortunately, there are only a few of those on limited holydays and weekends, which leave from platform 11 and take 1 hour and 10 minutes. Note that only the front half of train completes the entire journey to Musashi-Itsukaichi Station, the remaining carriages going to Okutama (奥多摩).
Alternatively, from Platform 12 station on the same station, catch a more frequent rapid service train (快速) or special service train (特別快速) to Tachikawa (立川) Station on the Chūō Line. Those take 38 and 27 minutes, respectively. At the Tachikawa, change to Platform 1/2, which is the JR Ōme Line (青梅線). It will probably be necessary to change again at Haijima (拝島) Station for the last part of the journey to Musashi-Itsukaichi, the terminus of the Itsukaichi Line (五日市線). From Tachikawa to Musashi-Itsukaichi takes a total of 30-40 minutes, not including connection time. A single ticket from Shinjuku to Musashi-Isukaichi costs 799 JPY.
Please check the latest timetable, because the timetable and fare are sometimes changed.
Timetable and Route Serch “HyperDia”
http://www.hyperdia.com/sp/index.html.en
From Musashi-Itsukaichi (武蔵五日市) Station to Hosawa Waterfall Entrance (払沢の滝入口) Bus Stop
Leave Musashi-Isukaichi Station by the only exit, turn left, there are some bus stops, and board a No. 1 platform (1バスのりば) bound for “Hosawa Waterfall Entrance” (払沢の滝入口) or “Fujikura” (藤倉) or “Via Hosawa Waterfall Entrance” (払沢の滝入口経由) or “Kazuma via Yasaragino-sato” (やすらぎの里経由 数馬). Get off at the Hosawa Waterfall Entrance (払沢の滝入口) after 20-25 minutes.
The timetable of going bus is here. (Japanese)
Note: The bus going are very few numbers.
Even if there is no convenient bus, you can bound for “Kazuma” (数馬).
But in those case, you have to get off at Honjuku-yakubamae (本宿役場前), and cross the bridge in the same direction as the bus was traveling. On reaching a T-junction at end of the bridge, turn right and some 5-10 minutes along this track, there are Hosawa Waterfall Entrance (払沢の滝入口) Bus Stop.
From Hosawa Waterfall Entrance (払沢の滝入口) Bus Stop to Hiking Route of Waterfall
Turn left at the side of Tofu shop (Chitose-ya, ちとせ屋) in front of bus stop, and proceed along the street a little narrower you will see a parking lot paved on your right hand side. Turn left in the direction marked “払沢の滝”, some 15-20 minutes along this trail, there is Hosawa Waterfall.