A well-known environmental activist, Mr. DiCaprio bought Blackadore Caye, 104 acres of wild, unpopulated land off the coast of Belize, with a partner soon after he set foot in the country a decade ago. “It was like heaven on earth,” he said, speaking by telephone from Los Angeles. “And almost immediately, I found this opportunity to purchase an island there.”
Now Mr. DiCaprio has joined with Paul Scialla, the chief executive of Delos, a New York City-based developer, to create an eco-conscious resort there. When it opens to guests in 2018, “Blackadore Caye, a Restorative Island” will feature the trappings of many luxury resorts, with sprawling villas, infinity pools and stunning sunset views.