Yoho National Park is a true gem. It is home to the most stunning scenery in all of the Canadian Rockies, including the prized Lake O'Hara. Our visit to Lake O'Hara was the highlight of our trip, despite cold temperatures, rain, snow, and a cold that inevitably afflicted me after a few days of hiking in the rain and sleeping in hostels. Lake O'Hara is one of the most scenic areas in all of the Canadian Rockies - turquoise alpine lakes, hanging valleys, snowcapped mountains, and premier hiking. To make it even more special, Parks Canada, the country's national park service, restricts access to the area to preserve its special, fragile landscape.