Accessible via popular 7.4 km (out and back) moderate trail, Lake Agnes tea house is tucked away in the mountains above Lake Louise and there probably isn't a more scenic place to enjoy a cup of tea and some snacks.
To be honest, it does get busy here, but it is still one of the bucket list hikes (even if you don't buy anything at the tea house) that we'd recommend if it's you first time in Banff, especially if you can continue further to Little or Big Beehive.