Call Us Today 808.329.8073
Work Time 9 am - 1 pm
Address 73-4485 Kahilihili St, Kailua-Kona, HI
Address 73-4485 Kahilihili St, Kailua-Kona, HI


To promote education and advocacy through the culturally sensitive and environmentally sound use of sunlight and seawater for a sustainable future for Hawaii.

Founded as the Friends of NELHA in 2001, the KCS will continue to offer themed, weekday tours of Hawaii Ocean Science and Technology (HOST) Park’s research and cutting-edge industries for both visitors and Hawai‘i students.


We Offer Tours Monday, Tuesday, Wednesday & Friday at 10 AM

We will be closed for tours from June7th until June 28th, 2021!

Book online now!

If a particular date does not open for booking, it is because it is unavailable at this time.

We are short-staffed due to Covid, so you must book online or call ahead to book.

For further questions call 808-329-8073 or email


Keahole Center for Sustainability is home to HOST (Hawaii Ocean Science & Technology Park) and serves as a business incubator, research facility, and economic development agency. It offers the opportunity for organizations using sea water, sunshine, and ingenuity to perform research, engage in conservation and education activities, and produce sustainable commercial products.


So much to see and do especially in the science and food areas. From the cold seawater, the scientists and engineers have created interesting developments fro seahorses to pharmaceuticals. Spend a day here.

Visiting NELHA was literally the high point of our trip to the Big Island. These research groups are doing fascinating and admirable work and are showing us the way to the future in sustainable energy, agriculture, and aquaculture. The tour made us wish that we were young again and able to choose our career paths here. -Bj N

We loved this. The tour was incredibly interesting. NELHA is doing some amazing work. Visiting the charter school was very cool and made us want to go back to school (one of that type of course..) Definitely a very cool activity to do in Kona. -Smoll1