The Longest Zipline in Kauai

The longest single zipline on Kauai is the FlyLine at Kipu Ranch, near Lihue: more than 4,000 ft in one line, ridden headfirst at over 50 mph, and on outfitterskauai.com “Hawaii’s longest zipline” (November 2026). It sells only on the operator’s site. The longest course, by its operator’s own claim, is Koloa Zipline’s: 8 lines in about 3 hours, including the half-mile Waita line. For the most time on the cables in a booking sold here, book Koloa.

The Koloa 8-line tour on GetYourGuide: from US$169 a person with taxes and fees included (checked November 2026), the same for children aged 7 to 17; free cancellation up to 24 hours before.

Two kinds of “longest”

Two operators use the word, and they mean different things.

Each claim is the operator’s own, read on its site in November 2026; we have not measured the lines.

So both operators call a course “Kauai’s longest zipline tour”. With Nui closed until summer 2027, the Koloa claim is the only one of the two you can ride.

The FlyLine at Kipu Ranch

The FlyLine is one ride: a launch about 50 ft up, reached by roughly five flights of stairs, then more than 4,000 ft headfirst in a harness at over 50 mph. Two lines run side by side, so two riders land within seconds of each other. On its own it costs $69 + tax and takes about 1.5 hours; Zip & Splash, a limited-time fall 2026 offer, adds the WaterZip, a line that drops riders into a freshwater pool, for $120 + tax and about 2 hours (outfitterskauai.com, November 2026).

Riders must be 7 or older, at least 4 ft tall and between 60 and 275 lbs, and the rules are strictly enforced. It is not for pregnant riders, and anyone with a back, neck or muscular condition should weigh it carefully before booking. Book it on outfitterskauai.com; neither Viator nor GetYourGuide sold it in November 2026.

The Koloa course

Koloa’s eight lines run over former sugar plantation land outside Koloa, on the south shore. The longest named line is the Waita line, half a mile long, which is about 2,640 ft; with three of the island’s longest individual lines on one course, it is a longer tour than a single ride (koloazipline.com, November 2026). The tour comes with a safety briefing first, snacks on the course and tandem rides for children and light riders.

It takes about 3 hours, starts at 7 years old and takes riders up to 280 lbs, with no minimum height. It is the one Kauai course sold as a zipline tour on its own through Viator and GetYourGuide, and the calendar above is its GetYourGuide booking.

Shaka Zipline’s course in Poipu also has 8 lines and takes about 3 hours (adventureinhawaii.com, an agency, November 2026); we found no longest-line claim from it.

Who can ride which

Operator rules from outfitterskauai.com and koloazipline.com, November 2026.

A light 7-year-old under 60 lbs cannot ride the FlyLine but can ride Koloa, possibly in tandem. A rider over 275 lbs has only Koloa, up to 280. The limits side by side adds the Lihue backcountry course.

Nui and AdrenaLine

Outfitters Kauai’s two longer courses, Nui (six lines ending on the FlyLine) and AdrenaLine (four lines including the FlyLine, with a WaterZip finish), were marked “Returning summer 2027” on outfitterskauai.com in November 2026. Some comparison pages written before then still list them as running. Until they return, the FlyLine and Zip & Splash, which Outfitters Kauai sells as a limited-time fall 2026 offer, are the ways onto the long line.