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Chwarel Cwmorthin

Blaenau Ffestiniog

4.8 (50) Underground Hotel
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Chwarel Cwmorthin is home to the unique Deep Sleep hotel, situated 1,375 feet underground within a historic Snowdonia slate mine. The experience is defined by an adventurous journey to the subterranean cabins, which includes a mountain hike, steep descents, and multiple zip lines.

Viewers express a mix of curiosity and significant hesitation regarding the high cost of £400 per night, often recommending the day tour as a more practical and affordable alternative. Significant concerns are raised about safety and emergency medical access within the remote cave environment, leading to a cautious overall sentiment.

  • Opt for the day tour to experience the mine without the £400 overnight cost.
  • Prepare for a strenuous approach involving mountain hiking and multiple zip lines.
  • Assess your comfort with remote medical access before booking this deep underground stay.
  • Wear appropriate gear suitable for a damp, historic slate mine environment.

Summaries are created based on reviews, notes, and social media posts.




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