The Eibsee: the lake most visitors walk straight past.
Most people arrive at the Eibsee only to catch the cable car and never look twice at the water. That's a genuine miss — it's a glacier-fed lake with a real turquoise-to-emerald color, a flat two-hour trail around its full shoreline, and one of the few spots where you can see the Zugspitze's summit and its own reflection in the same frame.
Why the water actually looks like that
The Eibsee's color isn't a filter or a postcard exaggeration — it's genuinely turquoise-to-emerald in good light, a result of glacial mineral sediment suspended in exceptionally clear, cold water. The lake has several small forested islands scattered across it, which is part of what makes it photograph so differently from a typical alpine lake's single uninterrupted sheet of water. On a clear day, the northern shore gives a direct sightline to the Zugspitze summit — the one spot on this whole trip where you can see where you're headed and where you've been in the same view.
Walking the full loop
The Rundweg (loop trail) covers the lake's entire shoreline in about 7.2 km, with minimal elevation change — it's rated easy and suits most fitness levels, including families with older kids. Allow around two hours at a relaxed pace with stops; the trail alternates between open lakeside sections with photo stops and quieter stretches through spruce forest along the western side, away from the crowds near the cable car station.
Swimming, and how cold it actually is
Swimming is genuinely popular here in summer, with a few designated swimming areas along the shore, and the water quality is excellent — but it stays cold even in July and August, since it's glacier- and snowmelt-fed. Plan on a bracing dip rather than a long swim unless you're used to alpine lake temperatures.
Fitting it into a Zugspitze day
The Eibsee sits directly at the base of the cable car and is also a stop on the Zugspitzbahn cogwheel train's route up the mountain, so it slots naturally into either ascent without a detour — see the cable car or cogwheel train pages. If you only have time for the loop trail and not the summit, it's a full, satisfying half-day on its own and one of the few things on this trip that doesn't depend on the weather up on the mountain being clear.