Get ready for one of the most rewarding views in the Many Glacier valley! Grinnell Lake is a stunning, turquoise gem fed by the glaciers you'll see clinging to the surrounding peaks. To get there, you have two great options: you can take a scenic boat ride across two lakes, which leaves you with an easy and mostly flat 1-mile hike to the shore. If you're up for a longer walk, the full trail from the Many Glacier Hotel is a beautiful 7-mile round trip journey that's relatively gentle. Either way, the sight of that vibrant, milky-blue water is an experience you won't forget.