The bay does not afford a desirable anchorage. Small vessels sometimes anchor in the SW portion of the bay, but swinging room is limited. Anchorages in the bay are exposed to NE winds and sea, and during strong SW blows vessels are apt to drag anchor. In the absence of local knowledge, anchorage should be attempted only by small craft.
Navigation:
Ka’uiki Head on the S side of Hāna Bay entrance, is a crater 390 feet high; the outer half of the crater has eroded, leaving the inner side exposed.
Kauiki Head Light (20°45’26″N., 155°58’46″W.), 85 feet above the water, is shown from a 9-foot white pyramidal concrete tower on an islet close to the NE side of the crater.
The shores of Hāna Bay are rocky except for two short beaches, one at the S end of the bay and the other on the NW side. A shoal, usually marked by breakers, extends halfway across the bay from the middle of the N shore. A small 16-foot rocky spot is 350 yards N of the light. Numerous rocks, some bare at all tides, extend for 200 yards off Nānu’alele Point. The point is low, flat lava on the N side of Hāna Bay. Twin Rocks are two bare rocks, with deep water close-to, about 300 yards NE of the light; the inner and larger rock is 15 feet high. About 200 yards S and 300 yards SE of outer Twin Rock are Inner Pinnacle Rock about 3 feet high, and Outer Pinnacle Rock about 5 feet high.
The entrance channel to Hāna Bay is between Twin Rocks and the 16-foot shoal and is unmarked. A local rule is to avoid entering the harbor when the seas are breaking at the entrance.
