Wailua Falls is the waterfall you can see from the driver’s seat. Four miles up a country road from Līhuʻe, the pavement just ends at a guardrail, and there it is, two white ribbons dropping into a green bowl.
No hike, no shuttle, no timed ticket. You will want a credit card, though, because the state started charging at this lookout in February 2026, and the sign is easy to miss.
We also cover the rest of Wailua River State Park while we are up here. That means ʻŌpaekaʻa Falls, the Fern Grotto boat, the kayak situation after Hurricane Lowell, and the heiau along Kuamoʻo Road.
Everything below is current as of October 23, 2026.
Related: Best Waterfalls in Hawaiʻi | Best Things to Do on Kauaʻi | Poʻipū Beach After Hurricane Lowell
Quick Reference
📍 Wailua Falls Lookout, end of Maʻalo Road (Highway 583), Līhuʻe, HI 96766
📍 ʻŌpaekaʻa Falls Lookout, Kuamoʻo Road (Highway 580), Kapaʻa, HI 96746
📍 Wailua Marina (Fern Grotto boats and kayak launch), 3-5971 Kūhiō Highway, Kapaʻa, HI 96746
Park hours are 7:00 a.m. to 7:45 p.m. daily. Non-resident fees are $5 per person plus $10 per vehicle, credit card only, and one receipt covers every park site for the day. Hawaiʻi residents are free with a state ID.
Official pages: Wailua River State Park (DLNR), DLNR park notices, Smith’s Fern Grotto cruise, and the county’s Lowell recovery updates.
Where Wailua Falls Is and How to Get There
Wailua Falls sits on the South Fork of the Wailua River, a little over 5 miles (9 km) from Līhuʻe Airport. Figure 20 minutes door to guardrail, and that includes the slow part behind a tour van.
From Kūhiō Highway (Route 56) heading north out of Līhuʻe, turn mauka onto Maʻalo Road just past mile marker 1. There is a brown state park sign, but it is the kind you only see after you have driven past it.
Set your map app before you leave the rental lot.
Maʻalo Road runs about 4 miles (6.4 km) through old sugar land and pasture before it dead-ends at the lookout. Chickens will be in the road. Cows will be judging you. Take it slow, because people live along here and the last curve before the lot is blind.
The parking area is small and it fills by mid-morning. Do not panic if you have to circle once. Nobody stays longer than 20 minutes, so a stall opens up fast.
Once you are parked, the view is right there at the railing. If you have a stroller or a grandparent with a cane, this is the easiest waterfall stop in Hawaiʻi.
The $20 Question: Fees and Parking
Let’s get the money part out of the way first, because nobody likes being surprised at a guardrail. Since late February 2026, Wailua River State Park is a paid park for visitors, the same way Hāʻena is.
Non-residents pay $5 a person to enter and $10 for the car. A couple pays $20, a family of four pays $30, and keiki three and under are free, which takes a little sting out of it. Kamaʻāina get in free with a Hawaiʻi ID or driver’s license.
It is credit card only. There is no booth and no gate. An attendant with a handheld card reader walks the lot, so if you see someone in a safety vest headed your way, that is who it is.
The receipt is a day pass. Hang onto it, because it covers ʻŌpaekaʻa Falls and the Wailua Marina lots the same day. If you pay at Wailua Falls at 9:00 a.m., you are done paying for the park until you go to bed.
We get why people grumble at a $20 waterfall stop. The fees fund park maintenance, and the overflowing trash cans at this lot are exactly the kind of thing we hope they fix. Pay it, keep the receipt, and move on with your day.
Best Time to Go, and the Rainbow Trick
Go early. The sun comes over the ridge in the morning and lights up the mist at the base of the falls, and that is when the rainbow shows up. By late morning the tour vans arrive and the lot turns into a slow-motion game of musical chairs.
How much water you see depends entirely on what fell in the mountains overnight. After a dry stretch the falls split into two tidy ribbons, which is the postcard. After a big rain they merge into one brown roar and sometimes a third strand appears on the right.
We like it somewhere in the middle, and so will your camera. If the rivers are running chocolate from a storm, come back another morning. The lookout is close enough to town that a second visit costs you nothing but 20 minutes.
How tall is it? Most official-sounding sources put it at roughly 80 to 85 feet (about 25 m). The popular guidebook number is 173 feet (53 m). Stand at the railing and you will swear it is the taller one, and we are not going to argue with you.
One more piece of trivia for the car: this is the waterfall from the opening credits of the old Fantasy Island TV show. Somebody in your group will say “the plane, the plane” and you should let them have it.
About That Trail to the Bottom
You will see a worn path dropping off the side of the lookout, and you will see people on it. Don’t do it!
Officials closed the unofficial trails to the base years ago and posted signs at each one. The dirt is steep, slick, and held together by roots and wishful thinking, and the pool below has swift currents close to the falls.
Rescues happen here. More often than you would think.
We know the photos from the bottom look incredible. They were taken by people who got lucky, and the ones who did not get lucky do not post.
Jumping from the top is illegal and has knocked people unconscious.
Enjoy the falls from the railing and go find your swimming hole somewhere with a lifeguard.
The same goes for the trail past the ʻŌpaekaʻa lookout, which we cover below. Two visitors died on it in 2006, and it has been closed ever since.
ʻŌpaekaʻa Falls and the River Valley Lookout
Your day pass is still warm, so head to the second waterfall. ʻŌpaekaʻa Falls is about 15 minutes north on Kūhiō Highway, then mauka on Kuamoʻo Road (Highway 580) right after you cross the Wailua River.
Driving north, stay in the left lane at the river. The right lane peels off onto its own bridge and you will end up in a resort parking lot wondering what happened.
The lookout pullout is on your right a little under 2 miles (3 km) up Kuamoʻo Road, just before the 2-mile marker.
ʻŌpaekaʻa drops about 151 feet (46 m) over a lava ledge across a wide gorge, so you view it from a distance. It runs year-round. Late morning is the best light, when the sun is on the face of the falls instead of behind it.
The name means “rolling shrimp,” for the ʻōpae that used to tumble in the churn at the base. We love that somebody looked at a 150-foot waterfall and named it after the shrimp.
Now cross the road, carefully, because people fly up Kuamoʻo. The lookout on the makai side faces down the Wailua River valley, the green trench that Hollywood borrowed for Raiders of the Lost Ark and Jurassic Park. On a windy day the trades come up the valley and you can hear the river from the rail.
The village you can see on the riverbank below was Kamokila Hawaiian Village, a recreated settlement that closed in 2022. The heiau that are still open sit along this same road, and we get to those below.
The Fern Grotto by Boat
The Wailua is the only navigable river in Hawaiʻi, and the classic way up it is the open-air riverboat that the Smith family has been running since the 1940s.
Smith’s boats leave the Wailua Marina at 9:30 a.m., 11:00 a.m., 2:00 p.m., and 3:30 p.m. The ride is 2 miles (3.2 km) upriver, 1 hour and 20 minutes round trip, and it costs $35 for adults and $17.50 for keiki.
Book at smithskauai.com or call 808-821-6895.
Your state park fee covers the marina lot, so pay it on arrival if you have not already paid at a waterfall that day. Cards only. Same as everywhere else in the park.
The boat part is slow and lovely. The crew sings, tells stories about the kings who lived along this river, and somebody’s cousin teaches a hula lesson on the way up. Keiki who were bored at the lookout wake right up when the hula starts.
At the landing you walk a short rainforest path to the grotto, a lava-rock amphitheater draped in ferns. The musicians sing in the cave to show off the echo, and if there is a honeymoon couple on board, expect the Hawaiian Wedding Song. Yes, people still tear up.
The ferns took a beating from Hurricane Iniki in 1992 and never fully came back to the curtain you see in old photos. Go for the ride and the music, and treat the grotto as the sweet ending, not the headline.
If you want the boat and the luau in one evening, take the 3:30 p.m. departure and walk straight into Smith’s Family Garden Luau next door. We cover the big luau question in our best luaus in Hawaiʻi post.
Kayaking the River and the Secret Falls Situation
This is the part of the trip that Hurricane Lowell changed, and the booking sites have not caught up.
The classic Wailua River kayak day works like this. You paddle a tandem kayak about 2 miles (3.2 km) upriver and land at a muddy trailhead. From there it is about 1 mile (1.6 km) each way through the rainforest, with a stream crossing, to Uluwehi Falls.
Everybody calls it Secret Falls, which it has not been since roughly 1995.
As of October 23, 2026, that hike is closed. DLNR reopened the river and the designated landing after the storm, but hiking past the trailhead is prohibited until further notice, and access to Uluwehi Falls is closed. Individual kayakers are also barred from the Fern Grotto landing; only Smith’s boats may use it.
So what does a kayak tour look like right now? Mostly the paddle. That is still a great morning. The river is wide and calm, the valley walls go straight up, and you pass the same banks the riverboats cruise.
Call the outfitter the day before and ask exactly what the tour includes this week. If the answer is vague, book a different day or a different activity.
When the trail reopens, a guided tour with the gear and lunch runs about $125 to $135 a person plus tax, with a minimum age of 5. Plan on 4.5 to 6 hours.
This guided kayak and waterfall hike with a shuttle from the launch has well over a thousand reviews and is the one we would start with.
Two rules that catch people every week. First, commercial kayak tours and rentals are not allowed on the Wailua River on weekends, Sundays for years and Saturdays since late 2021, so book Monday through Friday. Second, most outfitters cap the tandem kayaks at around 275 pounds (125 kg) per person, and the guides enforce it.
The hike part is muddy, slippery, and crosses a stream that rises fast in rain. Wear shoes you can get wet, not slippers, and bring a change of clothes for the drive home.
Reef-safe sunscreen goes on at the launch, because the first mile of river has no shade.
Want a second option to compare? This guided Wailua River kayak and waterfall hike is the other well-reviewed tour, and again, ask what the waterfall portion looks like on the day you go.
The Heiau Along Kuamoʻo Road
This river valley was the seat of Kauaʻi’s ruling chiefs for centuries. The sites along the lower road make up the Wailua Complex of Heiau, a National Historic Landmark. They are quiet, free with your park pass, and worth 30 minutes of your waterfall day.
Poliʻahu Heiau sits on a bluff about a half mile (0.8 km) past the ʻŌpaekaʻa lookout, with a small pullout. It is a large stone platform looking down over the river.
Stay outside the walls, do not stack or move rocks, and keep the keiki from climbing; this is a place of worship, so treat it like one.
Lower down, near the start of Kuamoʻo Road, Holoholokū Heiau and the royal birthstones mark where chiefly births were recognized. A short path and interpretive signs explain it. Read them; the signs here are better than most of the internet.
At the river mouth inside Lydgate Beach Park, Hikinaʻakalā Heiau and the Hauola place of refuge sit along the path to the beach. DLNR has brochures for Poliʻahu and Hikinaʻakalā on the park page if you like to read before you walk.
Lydgate Beach Park: Where the River Meets the Ocean
📍 Lydgate Beach Park, 4470 Nalu Road, Kapaʻa, HI 96746
End the waterfall day where the Wailua River empties into the sea. Lydgate is a county park, so there is no state fee here. You get lifeguards, showers, the enormous Kamalani playground, and two rock-walled swimming ponds that keep the keiki out of the open ocean.
A quick storm note. Lowell sent the river over its banks in September and jammed the ponds with ironwood trunks and driftwood. More than a hundred volunteers dug them out on September 12, and the park is not on the county’s closure list, last updated October 20.
Still, peek at kauai.gov parks before you promise anyone a pond day.
The sand gets hot and the trade winds blow straight onshore here, so a tent or umbrella earns its keep. Parking is free, which feels like a small victory after the $20 lookout.
What to Bring and Keiki Notes
The lookouts need almost nothing: a credit card, a hat, and 20 minutes. Rain gear is smart on the east side any month of the year, since Wailua gets the showers that make the waterfalls worth seeing in the first place.
For the boat, bring a light layer. The river is shaded and breezy on the way back, and keiki who were sweaty at the dock will be cold by the grotto.
For the kayak day, pack like a hike: closed-toe water shoes, a dry bag for the phone, mosquito repellent, and more water than you think. The outfitters provide the kayak, paddle, and life vest. Most provide a dry bag too, but ask.
Toddlers do fine at both lookouts and on the boat. The kayak and hike is a 5-and-up activity, and we would call it 8-and-up for a kid who has never held a paddle. Two miles (3.2 km) each way gets long the moment a seven-year-old stops helping.
Cell service drops the minute you turn up Maʻalo Road, and it is spotty on the river. Like most places in Hawaiʻi off the main highway, download the map before you go and tell someone the plan.
Our Wailua Day, In Order
Wailua Falls at 8:00 a.m. for the rainbow and an empty lot. ʻŌpaekaʻa and the valley lookout by 9:30 a.m. Poliʻahu Heiau on the way back down the hill, then the 11:00 a.m. Fern Grotto boat with the keiki fed and sunscreened.
Lunch is ono grindz in Kapaʻa town, ten minutes north; our where to eat on Kauaʻi post has the spots. Then Lydgate for the afternoon, where the ponds are calm and the grown-ups can finally sit down.
Save the kayak for a separate weekday, and call first until DLNR reopens the Secret Falls trail. The river is worth a morning on its own, and the waterfall will still be there when the trail is.
Pay the $20 once, keep the receipt, and skip the path to the bottom. That is the whole plan, and it is a good one.
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