Compare durations, difficulty, inclusions, and who each tour suits best.

| Option | Time | Difficulty | Includes | Best For |
|---|---|---|---|---|
| Standard | 60–75 min | Easy | Helmet, light | First visit, families |
| Extended | 2.5–3 hr | Moderate | Helmet, extra lights | Geology fans |

Booking tip: Morning tours are quieter and photo‑friendly.
Bottom line: Match duration to curiosity and energy.

용암 터널에서의 하루를 쉽고 유익하게, 실용 팁으로 채우기 위해 이 가이드를 만들었습니다.
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