Hi
I did this tour 2 weeks ago. We had temperatures in the 30's some days, but also some really heavy rain. I would recommend taking a good quality light waterproof and some sensible footwear such as trainers. When we went up on the cable car there was still some snow under foot on the viewing area! Just take layers , you can usually leave stuff on the coach if you don't need it
It's a really good tour I'm sure you will enjoy it
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