The classic trails of Yoho National Park are the Iceline Trail and Burgess Pass. If you’re up for a “big day” (45 km), start from the Visitor’s Centre in Field and run up Burgess Pass and across to little Yoho Valley before running the classic Iceline Trail (you’ll need to do a car shuttle to get back to the Visitor’s Centre). Burgess Pass provides gorgeous views of Emerald Lake, while the Iceline Trail has classic glacier and Rocky mountain vistas. If you’re looking for something shorter consider either Burgess or Iceline. The Iceline Trail also has many options to shorten the loop.