Crescent bay on Kauai's North Shore — shore-casting and whipping for papio and oio on the reef flats, bonefish on the sand flats inside the bay, and a short run offshore for mahi mahi in summer.
Part of the Hawaiian Islands region.
Biting right now — 8 species are worth targeting in September here, and the 5 marked Peak are at their best right now.
Tap any species for how to identify it, when it runs and what to throw. This is when the fish are active here — check the regulations below before you keep anything.
Hanalei Bay opens about a mile wide between Makahoa Point and the reef off Puu Poa Point, with breaking coral fringing both sides of the entrance. Seas break clear across it in a north or northwest gale, and the whole bay takes high surf through winter and spring.
When the swell lies down the bay gives good shelter from the trades, with midbay anchorage in 6 fathoms over sand. The Hanalei River behind it is navigable by shallow-draft boats for two or three miles, and the mountains three miles inland rise over 4,000 feet.
Kauai's north-shore FAD is EK, moored about 8.5 nm off Hanalei Bay in roughly 1,000 fathoms; the Moloaa buoy (BB) lies 8.1 nm from Kilauea Point Light in similar water. Both are blue-water stops a short run from the bay rather than bottom structure.
A launching ramp sits on the south side of the Hanalei River 0.1 mile above the mouth, reached by a dredged channel running close along the reef on the northeast side of the bay; about 4.5 feet can be carried over the river bar at high water.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bonefish (O'io) | ||||||||||||
| Ulua (Giant Trevally) | ||||||||||||
| Bluefin Trevally (Omilu) | ||||||||||||
| Papio (Juvenile Trevally) | ||||||||||||
| Kawakawa |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ulua (Giant Trevally) | ||||||||||||
| Bluefin Trevally (Omilu) | ||||||||||||
| Aku (Skipjack Tuna) | ||||||||||||
| Mahi-Mahi | ||||||||||||
| Kawakawa | ||||||||||||
| Ono (Wahoo) |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pacific Blue Marlin | ||||||||||||
| Ahi (Yellowfin Tuna) | ||||||||||||
| Bigeye Tuna | ||||||||||||
| Ono (Wahoo) | ||||||||||||
| Mahi-Mahi | ||||||||||||
| Aku (Skipjack Tuna) |
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Typical: 18–28 in, 2–8 lb
Tell it apart: The conical snout overhanging a small under-slung mouth, combined with bright chrome flanks and a deeply forked tail, is unmistakable - no other Hawaiian gamefish has that pointed nose set over an inferior mouth.
Typical: 24–40 in, 10–40 lb
Tell it apart: Steep blunt forehead, large size, and a plain silver-to-grey body with no blue fins and no spots separate it from the spotted, blue-finned Omilu.
Easily confused with: Bluefin Trevally (Omilu)
Typical: 14–24 in, 2–10 lb
Tell it apart: Bright blue fins plus fine black-and-blue speckling across the back instantly mark Omilu, versus the plain grey, steep-headed Ulua.
Easily confused with: Ulua (Giant Trevally), Papio (Juvenile Trevally)
Typical: 12–24 in, 1–8 lb
Tell it apart: Papio is simply a young trevally - confirm the bony scutes on the rear lateral line, then check for blue fins and spots (Omilu) or a plain steep-headed grey body (Ulua) to pin the species.
Easily confused with: Bluefin Trevally (Omilu)
Typical: 18–28 in, 5–15 lb
Tell it apart: Broken wavy markings confined to the UPPER back, plus a few dark spots low between the pectoral and pelvic fins, distinguish Kawakawa from Aku, which has clean horizontal stripes on the LOWER belly and a plain back.
Easily confused with: Aku (Skipjack Tuna)
Typical: 18–30 in, 5–20 lb
Tell it apart: Straight horizontal stripes running along the belly and a plain unmarked back separate Aku from Kawakawa, whose markings are wavy, confined to the upper back, with spots low on the chest.
Easily confused with: Kawakawa
Typical: 30–48 in, 10–30 lb
Tell it apart: The single full-length dorsal fin running head to tail over a thin, deep, glowing green-gold body is unique - no other Hawaiian pelagic has that continuous dorsal.
Typical: 34–50 in, 8–30 lb
Tell it apart: An elongated tubular body with vertical blue tiger bars and a toothed beak-like jaw identifies Ono - it has no rigid spear/bill, unlike a marlin.
Easily confused with: Pacific Blue Marlin
Typical: 80–300 lb
Tell it apart: The rigid round spear bill and a pointed dorsal fin shorter than the body depth confirm a marlin; Ono has a toothed beak and a long low body, never a bill.
Easily confused with: Ono (Wahoo)
Typical: 30–50 in, 20–100 lb
Tell it apart: Very long curved yellow second dorsal/anal fins, a bright yellow side stripe, and a normal-sized eye separate Yellowfin from Bigeye, which keeps short fins, a larger eye, and a longer pectoral.
Easily confused with: Bigeye Tuna
Typical: 40–60 in, 60–150 lb
Tell it apart: Short second dorsal/anal fins, a noticeably larger eye, and a long pectoral fin reaching past the second dorsal origin mark Bigeye, versus the long sweeping yellow fins and yellow side stripe of Yellowfin (Ahi).
Easily confused with: Ahi (Yellowfin Tuna)
Hawaiian tides are small (~2 ft range) — what matters most is moon phase, which drives stronger tidal flow and pushes bonefish onto flats and trevally tight to structure; plan offshore trips to beat the trade winds, which typically build to 15–20 kt by midday.
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