Saint Raphael Catholic Church holds the distinction of being the oldest Catholic church in Hawaii, founded in 1841 to serve the plantation workers and their families in the Koloa area. The current stone church dates from 1856, built from local lava rock and coral. It's still an active parish and the grounds include the historic cemetery, which is one of the most affecting sites in the Koloa area: the grave markers reflect the full ethnic mix of the plantation workforce, a tangible record of the immigration waves that shaped modern Hawaii.
The church is a short drive south of Koloa town. The building is simple and handsome, nothing like the great churches of Europe, but the age and setting — palms overhead, the old cemetery beside it, the plantation history all around — give it a weight out of proportion to its size. It's open to respectful visitors; check whether services are in progress before entering.