KTO's Durunubi lists Haeparang Trail Course 9 in Ulsan Dong-gu: 19.7 km, approximately 7 h, rated moderate. This rating is a guide, not a guarantee of suitability for every hiker.

[Before hiking] Check the latest start/end points and trail status in Durunubi. Independently confirm return transit, last buses, toilets and drinking water. Watch for wind, surf, slippery ground and daylight. Walking time varies with conditions.