We noticed that you're using an unsupported browser. The TripAdvisor website may not display properly.We support the following browsers:
Windows: Internet Explorer, Mozilla Firefox, Google Chrome. Mac: Safari.

Friends of NELHA

73-4485 Kahilihili St., Kailua-Kona, Island of Hawaii, HI 96740
+1 808-329-8073
Review Highlights

This tour was so amazing! I learned so much about the more than 40 businesses that use the cold... read more

Reviewed 4 weeks ago
Fair Oaks, California
Don't Miss this opportunity!!

This was a great opportunity to meet with the future. Most interesting cutting edge technology with... read more

Reviewed November 6, 2017
Ed W
via mobile
Read all 95 reviews
Sponsored by:
Map updates are paused. Zoom in to see updated info.
Reset zoom
Updating Map...
Sponsored by:
See the future now with Friends of NELHA and experience a fascinating tour of Hawaii Ocean Science Technology Park near Kailua-Kona on the Big Island of Hawaii. FON tours showcase the development of renewable energy resources and uses of cold deep seawater and warm surface seawater in innovative aquaculture and mariculture activities and much more. This is a one-of-kind science and technology site in the world, an exciting learning experience and a must-see stop on the Big Island. FON offers public presentations and tours of selected NELHA energy and aquaculture projects Monday through Friday at 10 am, excluding holidays. Reservations are required for Friday's Grand Tour. Friends of NELHA (Natural Energy Laboratory Hawaii Authority) is a nonprofit organization providing education and outreach in support of sustainable agriculture and renewable energy.
  • Excellent62%
  • Very good24%
  • Average5%
  • Poor6%
  • Terrible3%
Travelers talk about
“abalone” (29 reviews)
“octopus” (18 reviews)
“fish farm” (6 reviews)
Closed Now
All hours
Hours Today: 9:00 AM - 1:00 PM
73-4485 Kahilihili St., Kailua-Kona, Island of Hawaii, HI 96740
+1 808-329-8073
Write a ReviewReviews (95)
Traveler rating
Traveler type
Time of year

1 - 10 of 89 reviews

Reviewed 4 weeks ago

This tour was so amazing! I learned so much about the more than 40 businesses that use the cold and warm water of the Ocean to drive their businesses. I brought a group of 12 to the Aquaculture tour on Wednesdays. I can't wait to...More

Thank Michal3333
Reviewed November 6, 2017 via mobile

This was a great opportunity to meet with the future. Most interesting cutting edge technology with the use of deep sea water. The ability to produce power with nearly zero carbon footprint. Farming seafood in the open ocean and many more ideas are fostered in...More

Thank Ed W
Reviewed November 5, 2017

There is a different tour every day here and it is well worth a visit. There are 40 organizations on the site under the umbrella of NELHA . They are all research oriented and working toward sustainability and conservation. Part of our tour was to...More

Thank Jacqueline T
Reviewed September 13, 2017

The Natural Energy Lab Hawaii Authority is doing tons of great work in research, green technologies, conservation, husbandry, and natural products from the sea. Friends of NELHA have a couple of different tours to showcase some of this work, as well as the really cool...More

Thank Cinerina
Reviewed September 1, 2017

We had a talk and slide show about renewable energy where description of the research being done was explained. One of the projects is to produce electricity by using the temperature difference between deep cold seawater and surface seawater. They bring cold water from 3000’...More

Thank FarmerRK
Reviewed July 21, 2017 via mobile

My husband and myself went to this facility (have to make reservations)....our tour guide Candee was WONDERFUL! She explained the whole facility along with a slide presentation...very interesting what they are doing there and will continue to do.....with using the ocean for energy etc. We...More

1  Thank Debbie C
Reviewed July 17, 2017

It starts in the visitors center with a presentation about all the different kinds of research going on in the park. The building itself is naturally cooled with cold seawater. After the overview, we all went to visit the facility where they're doing research with...More

Thank bobndee24
Reviewed June 4, 2017 via mobile

This facility showcases about 50 on-site research facilities using temperature differences of deep sea water relative to surface temperature. Producing electricity, growing shell fish, studying sea horses, crops.... even making wine grapes produce more than one crop per year! Tours include an inside look at...More

Thank Keith1511
Reviewed May 24, 2017

We took the Ocean Conservation Tour. A short introductory lecture which combined video and hands demonstration to explain what NELHA is, followed by visits to a few of the many enterprises in the complex. If you are bringing a kid of any age to the...More

Thank Karl E
Reviewed May 4, 2017

Worth the time and money. Very educational. Glad to see so many dedicated and interesting people working to improve the quality of our lives and environment. Norman

Thank anislander2017
Sponsored by:
Nearby Restaurants
Pine Tree Cafe
410 reviews
1.17 miles away
Harbor House
357 reviews
3.28 miles away
Big Island Pizza Napoletana
85 reviews
2.34 miles away
Mrs. Barry's Cookies
26 reviews
2.19 miles away
Nearby Attractions
Ocean Rider Seahorse Farm
786 reviews
1.50 miles away
Kaloko-Honokohau National Historical Park
580 reviews
2.01 miles away
Kanaloa Octopus Farm
137 reviews
1.85 miles away
Ask a question
Questions & Answers
November 11, 2016|
AnswerShow all 2 answers
Response from plschilt | Reviewed this property |
How can I answer that question. You need to call them. That said, the tours are not packed. You could risk it.
Marilyn K
November 17, 2015|
Response from Tom D |
Friends of NELHA presentations are held almost every weekday at 10:00. The cost depends on the nature of the scheduled presentation or tour on that day. Please check our website for details of the weekly schedule and to make... More