Behind the beach at Anaeho’omalu Bay are two fishponds, Kahapapa and Ku’uali’i. These ponds are typical of the kind that form behind a beach, which protects them from the ocean waves. The ponds are connected to the ocean by this channel, which allows was to come and go with the tides. A sluice gate was used to prevent fish using the channel as an escape route.
Where natural ponds weren’t available, they were created by enclosing areas with rock walls. I featured one such fishpond here.
In Hawaiian history, fishponds were very important. In such an isolated community it was important to have reliable food supplies. The ponds provided this, supplementing fish caught in the ocean. Many ponds have disappeared due to development, volcanic activity, tsunami, and the like. But the ones that survive are a bit of living history, used now more for education than for food.
For more information about Hawaiian fishponds go here.