Water streams back to an underwater cave near an OTEC (Ocean Thermal Energy Conversion) plant along the Kona coastline of Hawai'i Island.

Big Island, Kailua-Kona, blow hole, Hawai'i Island, Hawaii Island, Hawai'i, Hawaii, USA, Don Slocum, rights managed, nobody, nature, Kona, Kona Coast, coast, reef, rocks, rocky, lava rocks, tide, surge, stream, streaming, flow, flows, flowing, return, returns, returning, sunset, water, sea, ocean, seascape, reflect, reflection, gold, yellow, orange, green, motion, movement, water motion, algae, horizon, clouds, cloudy, drain, Keahole Point, lava rock, long exposure