Poseidon's Gate is where the lagoon dramatically narrows on Lifuka Island, creating a rugged and wild coastal scene unlike anywhere else in Ha'apai. Located beyond Velata Fortress, the route takes you straight through plantations and a coconut grove before opening to a rocky, wave-swept shoreline. Seabirds often soar overhead, and the natural rock formations offer a raw, untouched vibe. While not ideal for swimming due to rough currents and no reef protection, this coastal edge is a rewarding stop for those drawn to nature's wilder side.