The largest coffee farm in the U.S., this estate sprawls over 3,100 acres and nurtures 4 million trees. Its roots stretch back to the early-1800s McBryde Sugar Company. Today, it uses the Pacific sun, rich volcanic earth, and ample mountain rain to produce smooth, delicious blends. Stop by its orchard and tasting room on the southwest side of Kauai, not far from the Russian Fort. Kauai Coffee offers free guided walking tours daily at 10 a.m., noon, 2 p.m., and 4 p.m. Or book a more detailed Coffee on the Brain experience, which includes a sample and traces beans from the branch to the cup (make sure to reserve ahead).