We couldn't get a hire car so reluctantly did the bus tour - well we are so glad we did. It was amazing. Brian Robinson (driver and tour guide) was so knowledgeable and as well as Skywalk and Icefield also took up tp Peyto Lake and Athabasca Falls. These last 2 being the highlight of the day. Oleta who arranged tickets, food etc was also lovely and very helpful. Can't recommend enough.
We also found our bus driver (originally ftom Japan) from Banff to Lake Louise helpful, friendly and gave us really useful info including sunrise times at Lake Louise - well worth the early start. Brilliant all round.