Mehehune Fish Pond This ancient Hawaiian Fishpond can be seen from an overlook on Hulemalu Road. Legend states it was built by the Menehune, leprechaun-little people, in one moonlit night. Archeologist date the pond to pre-Hawaiian times, around 1,000 years ago. The fishpond fronts the Hule'ia Stream. The wall between the pond and the stream is 900 feet long - an engineering marvel considering when the pond was built. Today the fishpond is privately owned and is no longer in use.