ROBINSON CRUSOE ISLAND
A RARE GEM ON VIETNAM'S CENTRAL COAST

Cu Lao Mai Nha Island, nicknamed “Robinson Crusoe Island,” rises from the ocean like a granite pyramid whose base is hidden in the depths and whose summit touches the heavens. Located in the east of Dac Lac province (formerly Phu Yen), about 15 minutes from the mainland, this fragment of eternity stands isolated, battered by the winds and blue waves of the Pacific.

The island’s name, Mai Nha, means “roof,” a fitting description of its tapered silhouette. For generations, Vietnamese fishing families have found refuge here, including the astonishing “king of the island,” whose ancestors have watched over this sea rock for centuries. Even in the days of the Champa kingdom, its western side served as a natural shelter from typhoons and the wrath of the ocean.

Long and wide, measuring approximately one and a half kilometers, the island rises to a height of 104 meters. At its summit, a maritime forest clings to the rock, entangling vines, ficus trees, thorny bushes, and dragon trees (Dracaena angustifolia). Lower down, the slopes are covered with saltbushes and shrubs battered by sea spray. Sea bindweed (Ipomoea pes-caprae), naupaka bushes (Scaevola taccada), and tufts of pioneer grasses such as spinifex crawl across its beaches and sandbars, with succulents studding the most arid areas like little jewels.

To the west lies an 800-meter stretch of white sand, a welcoming haven for fishing families. On the island’s eastern side facing the open sea, the ocean is harsher: a white, rocky shore bristles with prickly pears (Opuntia ficus-indica), pandanus (Pandanus amaryllifolius), and tropical almond trees (Terminalia catappa). Here, waves, tides, and storms tirelessly sculpt the stone, carving out caves, overhangs, and granite chaos.

The northern part of the island features small cliffs, tangled rocky scree, Robinson Cove, and an intimate beach fringed with foam. The southern side rises like a wall, with sheer precipices that vanish into the crashing azure waves.

Mai Nha is home to nearly 200 species of reef fish belonging to the families of wrasses, damselfish, butterflyfish, angelfish, and surgeonfish. Anemones, starfish, sea urchins, sea cucumbers, shells, oysters, crabs, lobsters, and abalones flourish among the hard corals. Seagrass beds and algae complete this remarkably diverse ecosystem. Offshore, the majestic silhouettes of dolphins, sperm whales, or Bryde’s whales sometimes appear.

In areas of scrubland, cliffs, eucalyptus and pandanus groves, there are two species of sea eagle, nesting seabirds, swifts and swallows, geckos, skinks, lizards and numerous species of insects, including butterflies and dragonflies attracted to temporary pools. Until recently, there was still a species of monitor lizard (Varanus salvator macromaculatus) living in the driest parts of the island, a feared and respected reptile that still lives on in local oral tradition.

Since 2023, Secret Indochina has organized various scouting missions on Robinson Island. We offer an exquisite, gourmet lunch experience on Robinson Beach as well as two walking modules (levels one and two). Our team also coordinates a local beach clean-up project focused on preserving the beauty of Robinson Beach.
 

ANGKOR
THE HYDRAULIC CITY OF THE KHMER GOD-KINGS

The rise and fall of the Khmer Empire

Several factors explain the meteoric rise, and subsequent decline, of this civilization. The first lies in the very nature of its power: the king was a Devarâja, a god-king. This status, established by Jayavarman II, consolidated absolute authority. The king was identified with Shiva—the master of water, earth, and existence—and embodied both the warrior (kshatriya) and the priest (brahmin). Thus, for the peasants, serving the monarch was a religious act and an extension of devotion. This worldview was embodied in the temple mountains, earthly replicas of Mount Meru, the abode of the gods. Their symbolic moats represented the primordial ocean, a belt of sacred waters surrounding the cosmos.

The centralized and powerful Khmer state was based on a religious foundation derived from Hinduism, which had been peacefully introduced by merchants and Brahmins from India. Along with this religion, the Khmers also adopted a major cultural heritage: mathematics, astronomy, scientific techniques, and above all Sanskrit, the language of ritual texts and great epic poems (Ramayana and Mahabharata).

The second factor was the remarkable and deeply decentralized efficiency of the empire’s tax system, administered by the religious institution. Each village had its own temple, which served as both a spiritual sanctuary and a true administrative center. These temples were run by powerful families who were responsible for collecting taxes from the inhabitants. They used these monies to fund their estates, pay workers and soldiers, and maintain a lavish lifestyle. Any surplus was paid to the royal treasury. The prestige of these families was measured by the wealth they sent to the sovereign, which drove them to collaborate and relentlessly clear the forests to open up new agricultural land. Rice fields quickly spread across the fertile plains, leading to a rapid expansion of the empire's economic capacity. This simple, highly effective system was one of the pillars of Khmer prosperity.

The third reason for Angkor’s success was its unique ability to manage water. As the population grew and demand for rice increased, the inhabitants developed an ingenious water system that transformed the capital into a hydraulic city.

At the height of its power, the landscape of Angkor was crisscrossed by a network of sophisticated lines and channels. Water flowing down from the Kulen hills was captured and channeled into two huge reservoirs known as the barays—the largest reservoirs ever built. The biggest one held up to 48 million cubic meters of water, and the Western Baray alone covered an area equivalent to nearly 2,000 football fields. Even today, their precise geometric outlines remain among the most distinct man-made features visible from space. To build these colossal reservoirs, Khmer engineers did not dig; instead, they built imposing earthen dikes, nearly 100 meters wide and 10 meters high, then diverted rivers and canals to fill them. This system is still considered one of the greatest hydraulic feats of the medieval world.

These reservoirs had several key functions. They served as retention basins during the monsoon season, preventing uncontrolled flooding of rice fields and allowing the Khmer people to store water for the long dry season months when rainfall was scarce. They also provided basins for fish farming that could feed the entire population, complementing the large Tonlé Sap Lake, where, during fish migrations, fishermen caught various species using baskets, nets, landing nets, or hand-held fishing nets. Agricultural life was a relentless cycle; the first rice crop was harvested at the end of October, the second at the end of January, and the third in May, just before the return of the monsoon. The reservoirs, filled by alluvium-rich floodwaters, also helped prevent soil depletion. The empire’s great hydraulic legacy began with King Indravarman at Roluos, followed by his successor Yasovarman, who commissioned the Eastern Baray, and culminated in the massive Western Baray, constructed by King Udayadityavarman II.
 

These three pillars—the sacred power of the god-king, taxation as an engine of growth, and ingenious water management—enabled the Khmer people to build an empire and maintain its influence for over four centuries. Each of these strengths, however, harbored its own latent vulnerability. First, the power of the sovereign rested entirely on his religious status; if a new belief arose or a cult declined, royal authority could falter. Second, while the tax system promoted expansion, it also led to soil depletion and deforestation, fueling resentment among peasants who were under constant pressure. Finally, the very thing that made the Khmer Empire great—its prodigious mastery of water—made it vulnerable. The vast hydraulic network that irrigated Angkor and much of Cambodia required an immense workforce to repair dikes and embankments, clear canals, and prevent silting. A single crack, a single point of failure, was enough to trigger a domino effect throughout the entire system, weakening what was then the largest city in the world. And when the Khmer Empire reached its peak, all these latent flaws surfaced.

In 1177, Angkor was sacked by the Cham, who came from southern Vietnam via the Tonlé Sap River. Jayavarman VII (1181-1219) recaptured the city and restored Khmer power, making Mahayana Buddhism the guiding light of his reign. True to these principles, he opened new communication routes, built lodgings and schools, and erected the Bayon with its huge faces and inscrutable smiles. After his death and from the 14th century onwards, the city of Angkor gradually faded into decline. It was slowly swallowed up by the encroaching forest and eventually fell silent.

Rediscovering the glory of Angkor

Centuries later, in 1863, the French explorer Henri Mouhot reintroduced the West to the magnificent remnants of Khmer architecture, especially the temple of Angkor Wat, through his journal Tour du Monde.

In 1913, French writer and explorer George Groslier traveled down the Mekong River in what is now Cambodia. A painter, architect, photographer, and historian, Groslier was born and died tragically in 1945 in Phnom Penh. He lived among the Khmer people and learned their language. His travelogue remains one of the most vivid accounts ever written about the country. Of all the places he visited, none impressed him as much as the immense domain of Angkor and its ruined temples, rising out of the forest like the remains of a forgotten world.

“I saw the great stone lotus rising above a sea of treetops. I have just seen Angkor Wat, the temple of the royal city,” Groslier wrote in his 1913 book In the Shadow of Angkor: Notes and Impressions on the Unknown Temples of Ancient Cambodia.

We end this introduction to Angkor with another one of Groslier’s evocative quotes:

“I had awaited the most advantageous hour, when the sun is low and about to vanish… The mass took on a grey-green hue so fine that the stone attained a vague transparency. The great bamboos to the sides were doubled in the still waters of the moats… Oxen passed by. And beyond all that, at the center of the immense horizontal line of galleries on the first foundations, above motionless palms and rising shadow, the staggering mass and its five conical towers bathed in sunlight”

TEMPLE AS PILGRIMAGE
WALKING THE SACRED SPINE OF ANGKOR

There are places in the world that reward arrival, and others that ask something more of us. Angkor belongs to the latter. It does not reveal itself all at once, nor does it submit easily to schedules, checklists, or the hurried gaze. To walk Angkor well is not simply to move from temple to temple, but to enter a landscape conceived as a living act of pilgrimage—one that unfolds through the body, through breath and heat and silence, through thresholds crossed slowly and with care.

Angkor is not a single monument. It is a vast sacred city spread across forest and water, stone and sky. From the ninth to the fifteenth centuries, Khmer kings and artisans shaped this land into an architecture of devotion on an unimaginable scale. Temples rose as mountains, their moats reflecting sky until water became indistinguishable from air; causeways stretched like ceremonial spines across the earth. Yet what endures most powerfully is not size or splendour, but intention. Angkor was built to be walked.

To arrive in Siem Reap is to stand at the edge of this intention. The town is gentle and human in scale, shaped by hospitality, markets, cafés, and river light that shifts with the hour. It is a place of gathering and preparation. Then, often before dawn, the road bends away from town and slips into forest. The air cools. The light thins. Even before the first stones appear, the terms of attention begin to change.

Stand at the beginning of a causeway at Angkor Wat. The temple floats ahead of you—close enough that its towers are sharply drawn against the sky, far enough that the distance registers in your legs before you take a single step. Five hundred metres of stone. No shortcuts. No shade at first. The surface is uneven underfoot, worn smooth in places by centuries of passage, chipped in others where water has pooled and dried again. As you walk, the forest falls away to either side. Water opens out—still, reflective, holding sky and palm in its skin. Your pace settles into something slower than intention, faster than thought. After a few minutes, you realise the length is doing its work. Breath steadies. Muscles warm. The body begins to listen. By the time you reach the far end, you are not the same person who stepped onto the stone. Distance was never decorative here. It was the first instruction.

The temple continues this teaching upward. The ground rises almost imperceptibly beneath your feet. Steps appear—steeper now—drawing the body upward rather than forward. Water lies behind you, then far below, until height replaces horizon. Each level narrows the world. Corridors tighten. Light thins. Sound drops away, absorbed by stone. You pause without deciding to. From here, the temple no longer feels like an object you are visiting, but a terrain you are entering—a place with its own gravity. Looking down, the galleries fall away in measured layers; looking up, towers stack against the sky, lifting the eye beyond comfort. Only later does recognition surface: this ascent has rehearsed a map of the world. Sea to shore. Plain to mountain. Periphery to centre. Mount Meru is not explained here. It is climbed.

Step through a doorway and feel the world tilt. Outside, heat presses close to the skin; light flares off pale stone; bird calls scatter and overlap in the open air. Three steps forward. The temperature drops sharply. Light loosens, no longer striking but settling, sliding across walls in thin, angled sheets. Sound recedes until only your own movement remains—the soft scrape of a sole, the brief brush of cloth. The air carries a mineral dampness, cool and faintly metallic. Without deciding to, your shoulders lower. Breath lengthens into the ribs. You stand still, not out of reverence, but because the space has asked you to. Only afterward does understanding surface: the doorway has already done its work. What lies ahead will be received differently now.

Walk these paths again, and something shifts. Not immediately. At first it is only a change in attention. You return at a different hour. The causeway carries a longer shadow. Rain has darkened the stone since yesterday; lichen has brightened a seam you did not notice before. You pause where you once passed through. You begin to recognise how little of this fits inside dates, dynasties, or ground plans. Those have their place, but they do not account for what happens when the temples are walked slowly and often: how arrival changes the body, how crossings accumulate, how certain pauses stay with you long after you leave. Over time, a need becomes clear—not for more information, but for a different kind of accompaniment. A guide shaped by footsteps rather than facts alone. One that follows the sequence Angkor itself insists upon: approach, ascent, threshold, stillness, return. The temples do not announce this need. They let it emerge, quietly, through repetition.

You arrive carrying habits you did not choose. A phone warm in the hand. A list of sites. A sense that each place must be captured before you move on. The temples accept this without resistance—and then quietly undo it. After a while, the device stays in your pocket. The schedule loosens. You find yourself returning to the same gallery at a different hour, waiting for the light to change rather than searching for the next view. At mid-morning, shallow reliefs begin to breathe as shadows slip into their grooves. After rain, moss darkens to a deep green and the stone holds cool longer against the palm. Toward dusk, sound thins until footsteps become the loudest thing you carry. Nothing here asks for speed. Everything responds to patience. Without instruction, attention lengthens. You realise—only because your body has shifted—that this place was made for the way you need to stand now.

To walk Angkor as pilgrimage is to accept that the journey does not end at the last temple gate. Something accompanies you back across the causeway, into town, into the ordinary hours of the day. Not an idea carried intact, but a bodily recalibration: a quieter pace, a softened attention, a memory of stone that has endured not through dominance, but through balance. You find yourself listening more closely—to footfall, to shade, to the space between moments—long after the forest has fallen away behind you.

Angkor teaches without instruction. It waits. Those who come seeking images will find them. Those who come seeking history will be rewarded. But those willing to walk—to let distance work on the body, to pause at thresholds, to allow understanding to arrive through sensation—may discover something rarer still: pilgrimage not as a relic of the past, but as a living practice, still intact, still necessary, and waiting, patiently, in stone.