Koh Rong is an island located in Preah Sihanouk province in southern Cambodia, situated in the Gulf of Thailand. As the country's second-largest island, Koh Rong has become a significant destination for beach tourism and island activities. The island's name derives from either an old Khmer term for 'cave' or 'tunnel', or alternatively from the Old Khmer word for shelter, earning it the designation of Shelter Island. The island lies at coordinates 10.58°N, 103.30°E and is home to approximately 300 residents, though visitor numbers fluctuate seasonally. The nearby timezone is Asia/Phnom_Penh (UTC+7), and the island's economy relies primarily on tourism infrastructure including accommodations, restaurants, and water-based activities. Koh Rong serves as a gateway for travelers seeking beach relaxation and island exploration in Cambodia's coastal region.
Updated 2026-05-04 · Source: GeoNames, Wikipedia
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Koh Rong is positioned in the Gulf of Thailand within Preah Sihanouk province, making it part of Cambodia's maritime geography. The island's second-largest status among Cambodian islands reflects its significant landmass and tourism appeal. Its location at 10.58°N, 103.30°E places it in Cambodia's coastal zone, accessible by boat from mainland ports. The island's naming history—potentially referencing cave systems, tunnels, or shelters in Old Khmer—suggests a rich geological or historical landscape. Koh Rong's administrative division under Preah Sihanouk province ties it to one of Cambodia's primary tourism hubs along the southern coast.
Koh Rong's tropical location in the Gulf of Thailand makes seasonal considerations important for travel planning. The dry season typically runs from November through April, offering more predictable weather and calmer seas, ideal for beach activities and water sports. The wet season from May to October brings higher rainfall and rougher ocean conditions, though tourism continues with fewer crowds. Visitor numbers tend to peak during the cooler dry months when regional temperatures are moderate and humidity is lower. The island's beach-based tourism industry operates year-round, but accessibility and activity availability are strongest during the established dry season window.

Koh Rong is accessible exclusively by boat from mainland Cambodia. The primary departure point is Sihanoukville, located on the Cambodian coast in Preah Sihanouk province. Regular ferry services and private boat operators connect the mainland to the island, with journey times varying based on sea conditions and vessel type. The island lacks an airport or airstrip, making boat transfer the sole transportation method. Travel duration from Sihanoukville typically ranges from 45 minutes to over an hour depending on the specific port, vessel speed, and weather. Travelers should plan boat schedules in advance, as service frequency varies seasonally with higher availability during the dry season and reduced scheduling during monsoon periods.
Koh Rong has developed as a beach and island tourism destination, with activities centered on water-based recreation and coastal relaxation. Snorkeling, diving, and swimming are primary attractions in the surrounding waters. The island supports accommodation infrastructure ranging from basic guesthouses to mid-range resorts catering to backpackers and mid-budget travelers. Beach bars and restaurants operate throughout the island, creating a social atmosphere, particularly in the main settlement areas. The island's tourism economy serves both day visitors and overnight stays, with the latter dominating the visitor profile. The relatively small resident population contrasts sharply with seasonal tourist influx, particularly during the dry season when accommodation demand peaks.

The island's infrastructure reflects its status as an emerging beach destination rather than a fully developed resort area. Roads are limited and often unpaved; transportation within the island relies on walking, motorcycles, or informal shuttle services. The absence of vehicles like cars makes the island more pedestrian-friendly and preserves its relatively undeveloped character. Essential services including shops, medical clinics, and ATMs are available in the main settlement but may be limited compared to mainland facilities. Electricity and freshwater availability can fluctuate, particularly in remote areas of the island. The island's infrastructure development is ongoing as tourism expands, though facilities remain modest relative to more established regional beach destinations.
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Provincial capital and third largest city in Cambodia, situated on the Sangkae River with colonial heritage.
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Phnom Penh
Cambodia's capital and largest city, situated at the confluence of the Tonlé Sap and Mekong rivers, serving as the nation's political, economic, and cultural centre since 1865.
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Siem Reap
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Kampot
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Kep
Smallest province of Cambodia, known for seafood, beaches and Kep National Park, separated from Kampot in 2008.
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Sihanoukville
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Geographic data from GeoNames (CC BY 4.0). Narrative sourced from Wikipedia (CC BY-SA 4.0) and structured by Claude. Map by © OpenStreetMap contributors (ODbL). See the methodology and sources registry for full attribution and update cadence.
This page last refreshed 2026-05-04.
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