Salt and diesel mingle in the air as the speedboat slips away from Caracas Bay, the city of Willemstad shrinking into a line of pastel warehouses and a stubborn bridge. The motor hums a steady promise while the coastline unspools: Jan Thiel’s fringed beaches, the bright stripe of Blue Bay, then a rocky silhouette that hushes the group. The guide checks the sea, nods, and you lower yourself into water that seems to light from within — the Blue Room arrives not as a place but as a phenomenon, an aquarium of sky-blue light reflected through a narrow cave mouth.