This trail presents the opportunity for a four lake tour: Vista, Arnica, Upper Twin, and Lower Twin. The track takes you to the Banff backcountry campground TW7. You have to reserve beforehand. It is a beautiful hike, with quite a climb between Vista and Arnica lakes.
Off of Highway 93 in Banff nat'l park. The trail head is the Vista Lake/Twin Lakes trailhead. It is almost to British Columbia. If you cross the border you have gone too far.
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