If you’re looking for a quick, refreshing break while exploring the Big Island of Hawaii, a Deep Ocean Water Foot Soak might just be what you need. This experience, offered at the Hawaii Ocean Science & Technology Park, promises a 20-minute dip into water sourced from 2,200 feet deep, filled with naturally occurring magnesium and set against a stunning oceanfront backdrop.
What immediately caught our attention about this tour is its simplicity and focus on wellness. It’s not a full-day adventure or a bustling activity; instead, it’s a peaceful, health-oriented moment that feels both indulgent and beneficial. We love how accessible it is — at just $20 per person — and how the reviews consistently rave about the relaxing effects. However, it’s worth noting that the water is quite cold, which might not be for everyone, especially if you’re sensitive to low temperatures.
This experience is particularly appealing for those who appreciate wellness activities, want a quick sensory reset, or simply love being near the ocean. Travelers who enjoy trying small, unique local experiences will find this a memorable addition to their Hawaii trip. It’s well-suited for people who are open to a brief but invigorating break, and it’s limited to just 12 participants, which keeps the vibe intimate and relaxed.
Key Points

- Affordable and Short: At $20, this quick 20-minute soak offers great value.
- Focused on Wellness: The magnesium-rich water may help with circulation, swelling, and relaxation.
- Unique Location: Set at a cutting-edge Hawaii Ocean Science & Technology Park with ocean views.
- Highly Rated: Perfect average rating of 5.0 based on 28 reviews, with travelers loving the experience.
- Cold Water Challenge: Expect the water to be freezing, which visitors say can be both invigorating and challenging.
- Limited Group Size: Small tours of up to 12 people keep it personal and less crowded.
What to Expect on the Tour
The experience begins at the meeting point located at 73-907 Makako Bay Dr, Kailua-Kona. Once there, you’ll be greeted by friendly staff from Kona Sea Salt – The Farm, who will explain the process and what makes this deep ocean water special.
The core of the activity involves dipping your feet into the cold, magnesium-rich water for about 20 minutes. Many reviewers mention how the initial shock of the temperature is intense — with one reviewer describing it as “freezing cold” — but that they found it surprisingly refreshing after a few moments. Some folks even find that they can stay in longer as they get used to the chill, feeling the benefits of improved circulation and reduced swelling.
The water temperature hovers around 47 degrees, a fact that might give some pause if you’re sensitive to cold. But for those who enjoy a brisk dip, it’s an invigorating way to boost circulation and relax tired legs and feet after a day of exploring or walking.
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Why the Deep Ocean Water Foot Soak Is Worth Considering
The reviews highlight how many find this activity to be more than just a dip. It’s described as “hurt so good” and “so relaxing” — a paradox that many find appealing. The magnesium content is believed to support health benefits like improved circulation and better sleep, which some travelers say they noticed after trying it.
The location itself offers a beautiful oceanfront view, making the experience feel even more special. It’s not just about the soak; it’s about enjoying a peaceful moment with a view of the sea, which can really enhance mental relaxation.
Some reviews mention sampling salts and learning about the history of the salts, adding an educational aspect that might be interesting if you’re into local crafts and traditions. However, the main draw remains the sensation of cold water and the potential health benefits.
The Real Experience From Travelers

Multiple reviews emphasize how effective this activity is for feeling refreshed. One reviewer said, “What an amazing experience! Cold but refreshing and my feet and legs felt so good after,” highlighting how surprising and beneficial the cold water can be. Another mentioned, “We loved this, it hurt so good,” indicating that even those sensitive to cold still found value in the experience.
A common theme among reviews is how the activity helps with swelling and circulation — perfect after a long day of walking or physical activity. Given the small group size, you’ll likely get personalized attention and guidance, making it a comfortable and engaging experience.
Practical Details and Tips
Duration: About 20 minutes, which makes it easy to fit into any schedule.
Price: $20 per person — a good deal considering the wellness benefits and oceanfront setting.
Availability: Most travelers book about 17 days in advance, so planning ahead is recommended.
Meeting Point: 73-907 Makako Bay Dr, Kailua-Kona, HI — easy to find with a mobile ticket.
Weather Considerations: Since it’s an outdoor activity, check the weather before booking. If canceled due to poor weather, you’ll be offered a different date or a full refund.
Group Size: Limited to 12, ensuring an intimate experience.
Accessibility: Service animals are allowed, and most travelers can participate — just keep in mind the cold water might be uncomfortable for some.
Final Thoughts: Who Should Try This?
If you’re someone who appreciates small moments of wellness amid your Hawaii adventures, this soak is worth considering. It’s especially appealing if you enjoy ocean views, like cold water dips, or are curious about local health practices like magnesium-rich waters and salts. The activity’s affordability makes it a low-commitment way to add a refreshing pause to your day.
However, if you’re highly sensitive to cold or have mobility issues, this might be less appealing. The 20-minute dip into icy water is not for everyone, but for those willing to give it a go, the feeling of revitalization and the peaceful ocean setting can be quite rewarding.
Deep Ocean Water Foot Soak in Kailua Kona
“What an amazing experience! Cold but refreshing and my feet and legs felt so good after! Great host!”
FAQ
Is the water temperature really around 47 degrees?
Yes, the water is naturally cold, around 47 degrees, which many find invigorating. Be prepared for a shock initially, but most people adapt quickly.
Can I cancel if I change my mind?
Absolutely. You can cancel your booking up to 24 hours in advance for a full refund. Cancellations within 24 hours aren’t eligible for refunds.
Is this activity suitable for children?
While most travelers can participate, the activity is quite cold and might not be suitable for very young children or those sensitive to cold temperatures.
How long is the experience?
It lasts approximately 20 minutes, making it easy to squeeze in as a quick wellness break.
Do I need to prepare anything?
Just bring yourself and perhaps a towel to dry off afterward. It’s a simple but refreshing activity.
Is it a group activity?
Yes, with a maximum of 12 travelers, so it stays intimate and relaxed.
What’s the best way to get there?
You’ll meet at the specified location in Kailua Kona. The tour is designed for easy access, and you’ll be guided by friendly staff from Kona Sea Salt – The Farm.
To sum it up, the Deep Ocean Water Foot Soak in Kailua Kona is a straightforward, budget-friendly activity that offers a surprising amount of refreshment and wellness benefits. It’s perfect for travelers who enjoy ocean-side experiences and are open to the invigorating challenge of cold water immersion. Whether you’re looking to soothe tired feet or just try something uniquely Hawaiian, this experience delivers a memorable moment with beautiful views and a sense of well-being.
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