At the far end of the Koh Rong archipelago, past the day boats and the backpacker beaches, two tiny islands sit side by side, joined by a short wooden footbridge. Their own names, Koh Ouen and Koh Bong, are less known than the one they share today, Song Saa, which means the sweethearts. They are the deep end of this coast, where the castaway daydream is made real and priced accordingly.
The sweethearts
Song Saa Private Island is Cambodia's original luxury island resort, a scatter of timber and thatch villas, some over the water, some tucked into the jungle, built with driftwood and reclaimed wood and a deliberately light touch. The look is barefoot rather than glossy, the kind of luxury that hides its effort. The footbridge links the two islands, one given over to the resort, the other largely left to the forest.
A reserve of their own
What makes the place more than a hotel is the water around it. The owners established one of the country's first marine reserves here, protecting the reef and seagrass from fishing and anchoring, and the house reef has recovered into something genuinely worth the snorkel. Rangers watch over it, and the foundation attached to the resort works with the fishing villages nearby.
The wider archipelago
Song Saa is the famous name, but the idea it stands for, a private island at the edge of the map, runs all through these waters. Newer, quieter retreats are appearing on other small islands, less polished and more affordable, and the sea between them is the same warm, clear blue. You do not have to book the villa to feel the pull of it. Sometimes a day trip and a long look from the boat is enough.
How to be here
This is a destination to plan around rather than stumble into. If the villas are beyond the trip, treat the archipelago itself as the luxury, and give yourself the slow boat, the empty beach and the sky full of stars the two sweethearts have to themselves.