Soisan is an outdoor mountain hike with no listed indoor shelter, so it's not a good rainy-day choice.

• Place type: outdoor mountain attraction (362m peak with hiking trail).
• Main activities listed are summit viewpoint and the eco forest green trail — all outdoors.
• operating.parking_available is false, so no sheltered parking on site.
• experience_attributes.rain_safe and indoor_outdoor are not specified in the data.
• Open year-round with no closed days, but exposure to weather is unavoidable.

Based on place_type (attraction), short_summary_ko (mountain, summit, eco forest trail), category_codes (A01010400 nature/mountain), and operating.parking_available=false. experience_attributes.indoor_outdoor and rain_safe are null, so the rainy-day judgment relies on the outdoor nature of the site rather than an explicit rain-safe flag.

Soiisan is a 362m mountain hike with no documented child-specific amenities, so suitability depends on your kids' hiking ability.

• Mountain attraction, approx. 362m elevation with a summit view
• Open at all times, no regular closing days
• On-site parking is not available
• Stroller access is not documented
• No information on lactation rooms or child amenities
• Features an ecological forest trail (Soiisan Green Trail)

Based on short_summary_ko (terrain, trail), operating.open_hours_raw, operating.closed_days_raw, and operating.parking_available. accessibility.stroller_access, accessibility.lactation_room, accessibility.highchair_available, accessibility.infant_family_notes, and experience_attributes.child_friendly_level are all null, so child-specific suitability cannot be confirmed.

No foreign-language support is documented for 소이산; only Korean is confirmed.

• Korean-language support: confirmed
• English support: not documented
• Japanese / Chinese support: not documented
• Multilingual signage: not documented
• Audio guide, sign-language guide, large-print guide: not documented
• No localized name or address is provided in English/Japanese/Chinese

Based on language_support (only korean=true; others null), accessibility.audio_guide / sign_language_guide / large_print_guide (all null), and the absence of canonical_name_en/ja/zh_hans and address_en. Gaps are reported as 'not documented' rather than assumed absent.