Windward Big Island port working the wetter, less-fished east side — ahi and ono on the offshore weed lines, ulua and papio shore-casting along the rocky coast, and reef fishing inside the bay.
Part of the Hawaiian Islands region.
| 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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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.

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), Papio (Juvenile Trevally)

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)

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: Ulua (Giant Trevally), Bluefin Trevally (Omilu)

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)

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

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.

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

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)

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

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.
Hanalei, HI · Honolulu, HI · Kailua-Kona, HI · Kihei, HI · Lahaina, HI · Princeville, HI · Waianae, HI