Cathedral peak Hike

Hello
In a few weeks my friends an i want to climb Cathedral peak, while i have hiked the area
alot in the past, it was almost 28 years ago, so i am going blind ( so to speak)
We want do it over 2 days (overnight somewhere near) and make an accent the next day)
and make our way to Rainbow gorge later on
any advice will be most welcome
Thanks
David