The Blue Lagoon at Eton, seventeen kilometers east of Port Vila, draws its mineral-tinted clarity not from the ocean but from an underground spring that surfaces beneath a cathedral of banyan and pandanus. The site has been managed by local landowners since 1990, when communal tenure replaced colonial access rights, and the 1,500 vanuatu conservation fee collected at the entrance funds replanting, waste removal, and the rope-swing stations anchored above the deepest pools. The lagoon itself sits four meters below grade, accessed by a wooden staircase that follows the natural limestone shelf. What distinguishes the site from Vanuatu's coastal reefs is its freshwater ecosystem. The spring maintains a constant 24°C year-round, and visibility extends beyond fifteen meters on calm mornings. Visitors swim beneath submerged root systems and alongside schools of tilapia introduced in the 1970s for aquaculture trials that never scaled. The adjacent Eden on the River site, a separate concession operated upstream, offers a slower current and shallower wading pools favored by families. Half day blue lagoon tour vanuatu itineraries typically pair both locations, with transport from Port Vila hotels departing at 08:00 to avoid the cruise-ship convoys that arrive after 11:00. The conservation model here reflects broader shifts in Vanuatu's tourism economy. Land remains under customary ownership, and ticket revenue flows directly to the six families who hold hereditary rights to the Eton watershed. Infrastructure is minimal by design: composting toilets, gravity-fed showers, and a single covered pavilion for changing. The rope swings, rebuilt annually from coconut fiber and reclaimed timber, are the only manufactured attraction. Morning light filters through the canopy in columns, illuminating the silt plumes stirred by swimmers and the tannic gradient where spring water meets the river's darker flow. The site operates daily from 08:00 to 17:00, and the best window for photography falls between 09:00 and 10:30, before equatorial sun flattens contrast and before groups arrive from the port. Combination tours now link the Blue Lagoon with marine sites—Hideaway Island for snorkeling, Lelepa Island for beach access, or the Vanuatu Marine Discovery program, where trained guides facilitate encounters with resident hawksbill turtles under monitored conditions. These half day blue lagoon tour vanuatu packages reflect visitor demand for multi-habitat itineraries that compress rainforest, reef, and cultural demonstrations into a single departure.