i am going to grindelwald in August 2010 for 10 days, and have booked a jungfruabahn pass. i want to do some planning of walks before we go. my partner and i intend to walk for about 5-8 hours a day. we are ok with walking up. ie we have done scafell pike & snowdon. are there any books which have routes that include using the trains and cable cars or is there an internet site with routes on. any helpful suggestions on planning the holiday would be great.