Kolo Harbor affords anchorage with limited swinging room, but the swell is felt even though its full force is broken by the outer reefs. The harbor is not recommended for strangers. The ruins of an old wharf are at the head of the harbor.
Kolo Harbor about 10 miles W of Kaunakakai, is a large pocket in the reef with a narrow entrance from S. Two private white markers on shore about 300 yards W of Kolo wharf provide a 007° range, which marks the channel through the reef.
The channel and the harbor have depths of about 8 feet; the harbor is subject to shoaling. A moderately heavy swell causes heavy surf on the entrance bar, and the combination of surf and current often creates a hazardous condition.