If you have a Swiss pass as an observatory where you can see the Matterhorn, you must go. You can go on a day trip from Interlaken. There are many people hiking, but hiking is definitely recommended.
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Recommendations Near Gornergrat Observation Platform
Gornergrat Observation Platform Reviews: Insider Insights and Visitor Experiences
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If you have a Swiss pass as an observatory where you can see the Matterhorn, you must go. You can go on a day trip from Interlaken. There are many people hiking, but hiking is definitely recommended.