We will be travelling to Japan in a few months as a family of 4 (two adults one toddler and an infant) Im really confused with the train system and whether to buy a JR pass or is it better to buy as we go? so any helpful tips would be great as to which train to catch or where to catch it and should we purchase? Ideally we would like the fastest route and direct if possible as will be lugging two kids pram and luggage yikes!! In tokyo we would most probably use the train to get around also so would this affect which train pass to get etc?
We would start in
Tokyo (not sure which area yet) 4 nights
Tokyo to Hakone 2 nights
Hakone to kyoto 4 nights with train trip to nara park
thank you and highly appreciate any help!