Wailua River Fishing Guides and Conditions, Hawaii
The only navigable river in Hawaii, and the busiest guided paddling water in the islands, running from the Mount Waialeale rainforest to the sea at Wailua Bay.
Guides on the Wailua River
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About the Wailua River
The Wailua is the only river in Hawaii that the state treats as navigable, and it carries more guided traffic than any other fresh water in the islands. It gathers on the east flank of Mount Waialeale in two forks, the north and the south, which join a few miles above the coast and run out to Wailua Bay. The USGS gauge on the south fork near Lihue watches about twenty-four square miles and reports discharge and stage. There is no temperature series, so flow and recent rainfall are the numbers that govern a day here.
Below the confluence the river widens into a slow, deep, jungle-walled channel that is essentially flat water, and that is what makes the commercial trade possible. Outfitters run kayak trips and the long-standing riverboat service up to the Fern Grotto, and guided paddling to Uluwehi Falls is one of the most booked activities on Kauai. Reservations and permit rules apply to commercial operators, and parts of the river are closed to rental kayaks on Sundays, which is worth knowing before planning around it.
The fishing is introduced and incidental to the paddling. Smallmouth and largemouth bass, channel catfish, bluegill and tilapia are established in the slower reaches and the reservoir water above, while the estuary near the mouth produces brackish species on the tide. Native o’opu, the amphidromous gobies, occupy the faster upper water and are a cultural resource rather than a sport target.
Wailua is also among the most significant Hawaiian cultural landscapes on Kauai, with heiau and petroglyph sites along the lower river. The upper forks are steep, remote and dangerous on any rise, and the flat lower river can still push hard toward the bar after heavy rain upslope.
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Access
Wailua River State Park marina - the main launch for riverboat and guided kayak trips.
Wailua Beach at the river mouth - estuary water, surf and the takeout for downriver paddles.
Fern Grotto landing - the traditional upriver destination, reached only by boat.
Uluwehi Falls trail from the north fork branch - the standard guided paddle-and-hike.
Opaekaa Falls overlook on Kuamoo Road - valley vantage and a read on river color.
Lydgate Park - protected swimming ponds and easy family water near the mouth.
South fork gauge vicinity near Lihue - the flow reference for the system.
Seasons
Spring: flows settle and the guided paddling season builds; good clarity between rain events.
Summer: driest and busiest, with the calmest flat water on the lower river.
Fall: rain returns to the windward slope and rises become more frequent.
Winter: wettest months, with brown water, strong current at the mouth and frequent trip cancellations.
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Questions
What is the current flow on the Wailua River?
As of Sep 7, 4:45 am, the USGS gauge SF Wailua River nr Lihue, Kauai, HI reads 817 cfs. Conditions update every 15 minutes.
What species can you catch on the Wailua River?
Anglers target Bluegill, Channel Catfish, Largemouth Bass, Smallmouth Bass, Tilapia on the Wailua River in Hawaii.
Where can you access the Wailua River?
Wailua River State Park marina - the main launch for riverboat and guided kayak trips. Wailua Beach at the river mouth - estuary water, surf and the takeout for downriver paddles. Fern Grotto landing - the traditional upriver destination, reached only by boat. Uluwehi Falls trail from the north fork branch - the standard guided paddle-and-hike. Opaekaa Falls overlook on Kuamoo Road - valley vantage and a read on river color. Lydgate Park - protected swimming ponds and easy family water near the mouth. South fork gauge vicinity near Lihue - the flow reference for the system.
When is the best time to fish the Wailua River?
Spring: flows settle and the guided paddling season builds; good clarity between rain events. Summer: driest and busiest, with the calmest flat water on the lower river. Fall: rain returns to the windward slope and rises become more frequent. Winter: wettest months, with brown water, strong current at the mouth and frequent trip cancellations.
Where are the fishing regulations for the Wailua River?
Regulations change by season and section. Read the current rules on the Hawaii agency site: https://dlnr.hawaii.gov/dar/fishing/fishing-regulations/