Tunnels Beach, Protected beach in Kauai County, United States

Tunnels Beach is a curved cove on the north shore of Kauai, in Kauai County, Hawaii, with golden sand and tropical plants behind it and Mount Makana rising in the background. Offshore lies a wide reef that forms natural structures visible from the water. The beach sits about 7,900 km west of Washington, D.C., in a mild climate where temperatures average around 17 °C and August is the warmest month at about 19 °C.

Tunnels Beach, also called Makua Beach, lies on Kauai's north shore in Kauai County, Hawaii. The 1958 film adaptation of South Pacific was shot in the area around the beach, and the location drew visitors afterward. The beach sits at the foot of Mount Makana, the mountain that stands behind the sand.

Local residents know the beach as Makua Beach, from the Hawaiian word makua, meaning parent. The name ties the shoreline to the surrounding community and its connection to the land.

Tunnels Beach sits at the end of a narrow road past Haena, on Kauai's north shore, and parking is limited, so many visitors arrive on foot along the coast. The offshore reef lies well out from the sand, and the water is shallowest near the shore. Conditions change with the season, so check the surf before entering.

The name refers to the lava tubes and caverns in the offshore reef, which divers and snorkelers enter through openings in the coral. Mount Makana, the fluted peak behind the beach, appears in the 1958 film South Pacific.