Not ideal for rainy weather — reaching the grotto involves an outdoor climb up the mountainside, and rain-safety isn't confirmed.
- Located on the slope of Sanbangsan; access is via an exposed outdoor climb.
- 'rain_safe' and 'indoor_outdoor' fields are not specified in the source data.
- Open daily 09:00–18:00, last entry 17:20; no regular closing days.
- Parking is available on site.
- Accessible restroom is provided.
- Multilingual support available in English, Japanese, and Simplified Chinese.
Based on place_type (attraction), short_summary_ko (describes a cliffside grotto on Sanbangsan), operating.open_hours_raw, operating.parking_available, and accessibility.restroom_accessible. experience_attributes.rain_safe and indoor_outdoor are null, so rain-suitability is inferred from the description rather than an explicit field.
