Meeting Place & Time: Karakida Station (Odakyu Line) at 10:32AM

Train: Shinjuku (Odakyuu Line slow Ward train going toward Karakida) 9:51 departure → 9:55 Yoyogi Uehara arrival (CHANGE trains) → Yoyogi Uehara (Odakyuu Line fast train direct going to Karakida) 9:57 departure → Karakida 10:30 arrival
If you want to go together, get on front of the train leaving at 9:57 from Yoyogi Uehara.

Course:  Karakida Station (Odakyuu Line) –  Bessho Park – Sasaragi Green Area – Nagaike Pond – Shimizu Green Area  – HorinoUchi Station (Keio Line)
 
Walking Time: About 4 Hours (12KM) plus a lot of time for fun, so the hike should take about 5 hours.

Course (in Japanese)
http://www.ops.dti.ne.jp/~hmiura/hachioji_besshoryokuchi.html