The Moir Gardens are botanical gardens located within the Outrigger Kiahuna Plantation, 2253 Poipu Road, Poipu, Kauai, Hawaii. Just to the east is Poipu Beach Park. They are open daily without charge.
Wikipedia https://en.wikipedia.org/wiki/Moir_Gardens
Address 2253 Poipu Road, Poipu, HI 96756, USA
Coordinates 21°52'39.176" N -159°27'39.532" E