Naebyeonsan Mountain

Naebyeonsan Mountain is the inner-mountain-ridge section of the Byeonsan-bando National Park in Buan, Jeollabuk-do — one of Korea's more distinctive national parks that combines the coastal Oebyeonsan ("outer Byeon Mountain") coastal-cliff landscape with the interior Naebyeonsan mountain-and-valley landscape in a single park. Naebyeonsan's peak, Ssangseonbong (508 m), is the park's highest point, and the mountain's dense forest cover, clear-water streams, and the historic Naeso-sa Temple (founded 633 CE during the Baekje kingdom) give the interior park section its specific cultural-and-natural character. Marked hiking trails range from a 90-minute Naeso-sa Temple loop to a 5-6 hour full ridge traverse. The Jikso Falls (Jiksopokpo) — a striking 22-meter waterfall reached by a 40-minute walk from the main entrance — is one of the park's most-cited scenic destinations, particularly in summer for the cooling effect and in autumn for the color layered over the granite cliffs. Best in autumn (mid-October to early November) for foliage or spring (April) for azaleas. Access: about 3 hours from Seoul by car via the Seohaean Expressway. Pair with the coastal Oebyeonsan (same national park, western half — with Chaeseokgang cliff scenery), the Gochang UNESCO Dolmen Sites, and Gochangeupseong Walled Town (same-batch verified) for a full northwestern-Jeollabuk day.