The Kona Sea Salt foot soak is a 20-minute dip in running 47–48°F seawater pumped from 2,200 feet deep, in an oceanfront cabana at the salt farm near Kona airport, for $20 with magnesium, drinking water and a salt tasting. It suits travelers with an hour before a flight; the drawback is water cold enough to numb feet within minutes.
Highlights
$20 for 20 minutes on the operator's site in October 2026, one of the cheapest bookable activities in Kona
Water comes from the same 2,200-foot-deep intake that feeds the farm's salt troughs and arrives at about 47–48°F, unchlorinated
Includes a 2 oz bottle of Deep Ocean Magnesium for the soak, magnesium-infused drinking water, towelettes, a freshwater rinse and a free salt tasting in the farm store
Cabana has 12 basins facing the ocean at the Hawaii Ocean Science and Technology Park, about 10 minutes from Kona International Airport
Rated 4.8 from 479 reviews on Greetwell and 4.9 on To-Hawaii as of October 2026, though most review text on those listings describes the farm tour rather than the soak
What to Expect
Book a slot through FareHarbor or walk in during store hours, 9:00 am to 4:00 pm daily, subject to capacity.
Check in at the farm store at 73-907 Makako Bay Drive, where the staff hand you a 2 oz bottle of magnesium to add to your basin.
Sit in the oceanfront cabana with your feet in a basin of running deep-sea water for up to 20 minutes; the operator suggests dipping in and out rather than staying submerged.
Drink the magnesium-infused water provided and rinse your feet at the freshwater station afterwards.
Finish with the complimentary salt tasting in the farm store, which Hawaii Magazine reported as 14 flavors in September 2025.
What's Included
20-minute foot soak
2 oz bottle of Deep Ocean Magnesium
Oceanfront cabana seating
Magnesium-infused drinking water
Towelettes and freshwater foot rinse
Complimentary salt tasting in the farm store
What's Not Included
The guided salt farm tour ($27 adult, $17 child in September 2025, bookable separately or as a package)
Transportation
What to Bring
Comfortable clothing
Sunscreen and sunglasses
Camera
Restrictions and Requirements
People with reduced temperature sensitivity should avoid prolonged exposure to the cold water
No formal age restriction published; the operator calls it family-friendly
Reservations recommended; walk-ins depend on capacity
Cancellation Policy
Cancel or reschedule up to 24 hours before the start for a full refund. Cancellations inside 24 hours are non-refundable and no-shows are charged in full. If the farm cancels for weather or other reasons you receive a full refund or credit. Checked October 2026 on Greetwell.
Kona Salt Farm store, 73-907 Makako Bay Dr, Kailua-Kona, HI 96740 (Hawaii Ocean Science and Technology Park)
Check-In
At your booked time during store hours, 9:00 am–4:00 pm daily
Parking and Getting There
On-site lot; the operator says luggage left in a car is safe there
Ratings from every source we could find
Other
4.8
479 reviews
Viator
4.9
review count not shown
Google Maps — Summarized by Our Team
Niche wellness add-ons tied to Kona's deep seawater infrastructure are a distinctive local specialty, generally positioned as a complement to farm tours rather than a standalone destination.
Last checked 2026-09-15
Ratings and review counts are checked periodically and may not reflect same-day changes on each platform.
What the Reviews Say
We read 2 first-hand accounts of the foot soak (a Hawaii Magazine feature from September 2025 and one 5-star Greetwell review from September 2026). The ratings below are the public scores shown on each listing as of October 2026 and appear to cover the farm tour and foot soak together.
What Reviewers Praise
Refreshing after midday heat(2 of 2 accounts we read)
Both accounts describe the soak as a welcome cool-down after time in the Kona sun, with the Hawaii Magazine writer saying she felt more energized afterwards.
— Hawaii Magazine, September 2025: after standing through a midday farm tour, the writer found the cold basin especially refreshing and left with a new appreciation for the salt tasting.
What Reviewers Complain About
Feet go numb quickly in 47°F water(1 report · outside operator's control · most recent: September 2025)
The Hawaii Magazine writer could keep her feet submerged only for short stretches before they went numb, which matches the operator's own advice to dip in and out. Anyone expecting a warm spa soak will be surprised.
— Hawaii Magazine, September 2025: the author managed only brief immersions in the roughly 47-degree water and alternated feet in and out.
About the Operator in General
Greetwell's review summary for Kona Sea Salt, The Farm mostly describes the hour-long salt farm tour, praising the guides and tasting while noting the tour moves quickly for large groups. The 4.8 score from 479 reviews as of October 2026 should be read as a farm-wide rating.
Our Verdict
Tripreviewall's Take
At $20 for 20 minutes, this is a low-risk add-on rather than a destination activity, and it is best paired with the $27 farm tour or used to fill the hour before a flight from the airport 10 minutes away. People who like cold plunges will get their money's worth; anyone expecting a warm soak should skip it. The health claims about magnesium and circulation come from the operator and have not been independently verified.
Book This Tour If…
You have 30–60 minutes before a Kona airport flight and want an oceanfront stop
You are already doing the salt farm tour and want to add 20 minutes for $20
You enjoy cold-water therapy or have sore feet after hiking or a run
You are traveling with children and want a cheap, calm activity
Skip This Tour If…
You expect a warm, spa-style soak; the water is 47–48°F
You have reduced temperature sensitivity or circulation issues the operator warns about
You want a stand-alone activity worth driving across the island for
You might need to cancel inside 24 hours
Tips From Reviewers and Operator Notes
Pair it with a farm tour: Hawaii Magazine listed daily tours at 9:00 am, 11:00 am and 2:00 pm with adult tickets at $27 in September 2025
Dip in and out rather than holding your feet under; both the operator and the one first-hand account we read say numbness sets in within minutes
Bring a card for the farm store, which sells the salts you taste
Reserve ahead through FareHarbor; walk-ins are accepted only if basins are free
Assessed by the Tripreviewall editorial team, last reviewed October 2026.
Frequently Asked Questions
How much is the Kona Sea Salt foot soak and how long does it last?
The Deep Ocean Cold Water Foot Soak costs $20 per person on konaseasalt.com as of October 2026, or $22.14 through Greetwell, for a 20-minute session. The price includes a 2 oz bottle of magnesium for the basin, magnesium drinking water, towelettes, a freshwater rinse and a free salt tasting in the farm store.
How cold is the water in the Kona Sea Salt foot soak?
The seawater is pumped from about 2,200 feet below the surface and arrives in the basins at roughly 47–48°F, unchlorinated and running continuously. The operator advises dipping feet in and out rather than keeping them submerged, and a Hawaii Magazine writer reported her feet going numb within minutes.
Where is the Kona Salt Farm foot soak located?
The soak takes place in an oceanfront cabana at Kona Salt Farm, 73-907 Makako Bay Drive, Kailua-Kona, inside the Hawaii Ocean Science and Technology Park about 10 minutes south of Kona International Airport. The farm store is open daily from 9:00 am to 4:00 pm, and there is on-site parking.
Can I combine the foot soak with the salt farm tour?
Yes. Kona Sea Salt sells tour-and-soak packages through FareHarbor, and the two run from the same farm store. Hawaii Magazine reported farm tours at 9:00 am, 11:00 am and 2:00 pm daily, priced at $27 for adults and $17 for children in September 2025, with a 14-flavor salt tasting included.
What is the cancellation policy for the foot soak?
Greetwell's listing for Kona Sea Salt, The Farm allows cancellation or rescheduling up to 24 hours before the start time for a full refund. Cancellations inside 24 hours are non-refundable and no-shows are charged in full. If the farm cancels because of weather, guests receive a full refund or credit.
Contact
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This is the tour operator's own contact info, shared for general questions — not for bookings. Book through the booking links for real-time availability and the best price.
TripReviewAll is an independent review site and does not operate this tour. For changes to an existing booking, contact Kona Sea Salt - The Farm directly.
