While skiing on the rainy Titlis, I saw a crack cave by the slopes, and also visited an ice cave for tourists.
The crack was tight, I wasn't able to enter it in my ski gear for more than a foot or two, but I suspect one might be able to enter it in the summer. The crack was pretty big though, high, long, and also open from the other end.
The ice cave was a nice experience -- also free -- but felt a bit artificial. It is in fact under an (artificially?) piled area of snow and ice next to the top station. But inside the frozen blocks of ice, with flowers inside were very beautiful.
Coordinates for the crack cave: N 46.78861 E 8.41332. The ice cave is at N 46.77087 E 8.42355, at the top of Titlis, accessible from the lowest level of the lift & restaurant building.
Beautiful frozen flowers at the ice cave at the top of Titlis:
Ice age!
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This article was originally published in the Planetskier Blogspot article series.
"Mongolia is kind of close, right? Story about an attempt to ski everywhere in the world where there's snow. And in some places where there isn't. On and off-piste skiing on all continents, skiing into craters of live volcanoes, climbing, photography, and travel." The Planetskier blog focuses on skiing, caving, climbing, biking, flying, sauna, and swimming adventures around the world. See the other Planetskier blog articles about skiing, caving, urban exploration, climbing, cycling, flying, swimming, and saunas.