Is Lyon Arboretum worth it?

Worth itUnderrated · +52Free University of Hawaiʻi rainforest garden at the top of Mānoa Valley, open weekdays

Worth it. 4.7 across 876 Google reviews; visitors consistently say it beats expectations. The waterfall itself is modest.

Hype19How famous and hyped it is

Reality71Evidence-based, votes take over as they come in

The gap+52UnderratedHow we score

4.7 ★ Google · 876 reviews— hypegap votes · be one of the first

Been to Lyon Arboretum? Was it worth it?

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Is it worth it for you?

Worth itEditorial verdict until 5 on a budget vote

Free entry and free parking (donation suggested) for a 200-acre rainforest garden.

Why Reality is 71

Lives up to its fame4/54.7 across 876 Google reviews; visitors consistently say it beats expectations. The waterfall itself is modest.

Value for money5/5Free (suggested $10 donation) for a large, well-kept rainforest garden that rivals paid gardens.

Can’t get it elsewhere4/5The island's most immersive free rainforest garden; Waimea Valley is the closest comparison but costs much more and is a long drive.

Easy to do2/5Close to Waikīkī, but weekday-only hours, a ~20-space lot, short-notice closures, mud and mosquitoes add friction.

What people loved

Free entry and free parking for a genuinely wild-feeling rainforest gardenQuiet trails, often with more volunteers than visitors on weekday morningsHuge variety of tropical and native Hawaiian plants with mountain views inside the valleyShort waterfall hike (ʻAihualama Falls) within the grounds

What wore them down

Weekdays only, 9 a.m.–3 p.m., so weekend-only visitors can't goTiny lot (reviewers estimate about 20 spaces) that fills quicklyMosquitoes are heavy; repellent is essentialTrails get muddy and slick after rain, and the waterfall is underwhelming in dry spells

Know before you go

See something out of date? Fix it right here.

Booking: No reservation for individuals; sign in at the Visitor Center. Groups of 8+ must book with Lyon's education department.

EntryFree; suggested donation $10 per personSource · Checked Oct 16, 2026

OpenMon–Fri 9 a.m.–3 p.m.; closed weekends and state/federal holidays; short-notice closures possibleSource · Checked Oct 16, 2026

ParkingFree but limited, first-come; overflow at Paradise Park lot ($7, $5 kamaʻāina/military) then a 7–10 min walkSource · Checked Oct 16, 2026

SizeNearly 200 acres, 7+ miles of trails, 6,000+ plant taxaSource · Checked Oct 16, 2026

ʻAihualama FallsAbout 1.2 miles round trip, ~360 ft gain; muddy and rooty, thin trickle in dry weatherSource · Checked Oct 16, 2026

Guided toursWalk-up docent tours $15; under 12 free. Groups of 8+ must arrange in advanceSource · Checked Oct 16, 2026

From Waikīkīabout 20 min by car in light traffic (~5 miles); or TheBus #5 to the last stop plus a 0.6-mile walkSource · Checked Oct 16, 2026

Opening hours (Google)

Monday: 9:00 AM – 3:00 PM
Tuesday: 9:00 AM – 3:00 PM
Wednesday: 9:00 AM – 3:00 PM
Thursday: 9:00 AM – 3:00 PM
Friday: 9:00 AM – 3:00 PM
Saturday: Closed
Sunday: Closed

In their words

“…you’ll see more volunteers around the property…than actual visitors so it’ll almost feel like you have the whole place to yourself.”

Jk · Google review · 3 months ago

“FREE admission and parking, but parking is seriously limited. There are approximately 20 spaces.”

Staci Stein · Google review · 6 months ago

“I gave a donation at the visitor center, while my wife ended up giving a “blood donation” to the mosquitoes.”

Dongjae Kong · Google review · a year ago

“If Waimea Valley feels like a well-curated garden of Hawaiian endemic plants, this place feels more like nature’s wild side…”

Dongjae Kong · Google review · a year ago

Tips from people who went

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One thing people should know

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Questions people ask

Is Lyon Arboretum free?

Yes. Admission is free; a $10 per person donation is suggested.

Is Lyon Arboretum open on weekends?

No. It's open Monday–Friday 9 a.m.–3 p.m. and closed weekends and state/federal holidays.

Do you need a reservation for Lyon Arboretum?

Not for individuals or small groups; groups of 8 or more must arrange their visit in advance.

Where do you park for Lyon Arboretum?

In the small free lot by the Visitor Center; if it's full, use the paid Paradise Park lot ($7, $5 kamaʻāina) and walk 7–10 minutes up.

Is there a waterfall at Lyon Arboretum?

Yes, ʻAihualama Falls, about a 1.2-mile round trip with ~360 ft of climbing; it's thin in dry weather.

Better fits, according to people who went

Worth itReality 70 +39Foster Garden★ 4.6Honolulu & Waikīkī · NatureOpen daily with easy paths if Lyon is closed on your day.

Worth it if…Reality 56 −5Mānoa Falls★ 4.7Honolulu & Waikīkī · HikeNext door: a taller waterfall and open on weekends, but busier and with paid parking.

Worth it if…Reality 64 +5Waimea Valley★ 4.6North Shore & Lāʻie · NaturePaved North Shore garden walk to a swimmable waterfall, open weekends; costs more.

Pearl Harbor — photo by Christopher Wilkinson

Worth itReality 90 −2Pearl Harbor★ 4.8Honolulu & Waikīkī · HistoryNPS memorial to the 1941 attack, with museums and a boat to the USS Arizona Memorial

Sources

Verdict by The Hype Gap editors. No one paid for it. Facts checked Oct 16, 2026. How we score · Standards