The roads are fine. We were in a bus tour. Never been here prior. As a visual apprstsvrisfd good and they’re were places to stay or stop that from my vantage point which was just passing though seemed busy

Actually, my reference indicates that from the trailhead Yoho Valley Road it is about 6.2 km's (about 4 miles) to the Iceline Summit, or about 2 hours of walking. So double that for the return. We've done it, and It's a wonderful area, as you get nice and high above treeline, with all the interesting wildflowers, critters, and views that come along with it. Most striking will be your view of Takakaw Falls across the valley, as you'll be high above it. You will be rising almost 700 m's or 2000 feet, so a little bit of stamina will be needed. And it is the high mountains, so weather can change from nice to hazardous in a blink of the eye, so be prepared, and take lots of water to drink.

Free to walk around lake. But as others have said you'll need a park pass... you will buy one as you enter via toll booth type gates

I'm not sure because I usually rent there, but it's the Kicking Horse Campground that you would be looking for. Prices should be listed on the Parks Canada website.

Most are accessible by vehicle. Research the Canadian National Park website as it is full of great information, especially about activities. Have fun!!!

When camping take top notch camping gear with you, outherwise you will freeze your heiney off.

We would have liked to do one of the hikes at Lake O'Hara, but found out far too late that you basically have to reserve the bus-trip exactly 3 months to the day to get a seat. It might end up raining or overcast on the day you booked the bus... There are several walks rated easy / medium. We based ourselves in Canmore and found that one day for example it was raining cats & dogs in the Bow Valley but it was alright heading for the day into Kootenay NP. We didn't go on the Iceline hike either but only had time that day to visit Takakkaw Falls. The Eastern side of the Yoho Valley looks spectacular, so that hike will be fanatastic I think. The trail is marked moderate / difficult - we would have not been fit enough for it I think. We were initially hoping to walk along the valley floor to Twin Falls, but ran out of time after a very early start visiting Emerald Lake and doing the Emerald Basin Hike. Hope that helps somewhat...