ʻO ke ʻano o ka ʻōpala o waho i ke kolamu poepoe, me nā laina laumania a palupalu a ʻaʻohe kihi ʻoi, e hāʻawi ana i nā kānaka i ka manaʻo o ka pilina a me ka palekana, hiki ke hoʻohui maikaʻi ʻia i nā ʻano hiʻohiʻona waho āpau, e pale ana i nā ʻeha i ka poʻe hele wāwae ma muli o ke kuʻi ʻana.
Ua hoʻonani ʻia ke kino nui o ka ʻōpala waho me nā kaha lāʻau, me ke ʻano lāʻau moakaka a kūlohelohe, e hōʻike ana i kahi leo melemele-ʻeleʻele mahana, e hōʻike ana i kahi lewa kūlohelohe a me ka ʻāina, e hana ana i kahi lewa kokoke i ke kūlohelohe, a me ka hoʻopili maikaʻi ʻana me nā wahi waho e like me nā paka, nā wahi nani, a me nā mea ʻē aʻe. Ua mālama ʻia paha ka lāʻau a ua pale ʻia i ka wai. Hiki ke mālama ʻia kēia mau lāʻau me ka anti-corrosion a me ka pale wai e hoʻololi i ke aniau o waho.
ʻO nā uhi o luna o ka ʻōpala o waho a me nā ʻano kākoʻo e pili ana i hana ʻia me ka metala, pinepine i nā kala haʻahaʻa e like me ka hina ʻeleʻele a ʻeleʻele paha. He ikaika a paʻa ka metala, e hāʻawi ana i ke kākoʻo kūkulu hilinaʻi no ka ʻōpala a me ka hōʻoia ʻana i ke kūpaʻa holoʻokoʻa, ʻoiai e kūlike ana me ka ʻāpana lāʻau e hana i kahi hopena ʻike maka o ka ikaika a me ka palupalu.