For a close-up view of a glacier and formidable ice caves, take the cable car and rack railway up the Montenvers to the dazzling Mer de Glace (Sea of Ice).
The ice caves are dangerous to explore during the windy seasons.
mnli hypothesis: The ice caves are dangerous to explore during the windy seasons. premise: For a close-up view of a glacier and formidable ice caves, take the cable car and rack railway up the Montenvers to the dazzling Mer de Glace (Sea of Ice).