想問怎樣由劍橋university去Salisbury 和 由Salisbury to Heathrow airport

有無容易些的方法－最好轉少些車或不須轉．的士太貴．我認路很差．Any other direct travelling方法?

（１）Fr. Cambridge to Salisbury:

11 Aug 9am

Cambridge---(by First Capital Connect Train)----Kings Cross---(by Underground)---London Waterloo-----(by Southwest Train) ----Salisbury


（２）Fr. London Waterloo to London Heathrow airport:

17 Aug 5pm

Salisbury----(by Southwest Train)---London Waterloo---? how to get to :London heathrow Airport?

（３)how to get to Heathrow airport from Waterloo, by underground or bus......?