Introduction
The Gulf of Thailand, also known as the Siam Gulf, is a warm, shallow gulf in the western part of the South China Sea. It borders Thailand, Cambodia, Vietnam, and Malaysia, playing a crucial role in economy, marine biodiversity, and tourism.
1. Geographic Location and Key Features

The Gulf of Thailand is connected to the South China Sea through narrow straits.
- Area: ~320,000 km²
- Average Depth: 45 m
- Maximum Depth: ~80 m
- Water Temperature: 26°C – 30°C
2. Marine Biodiversity and Ecology

The Gulf of Thailand is home to diverse marine life but faces environmental challenges.
- Coral reefs around Koh Tao, Koh Samui, and Koh Phangan
- Rich fish biodiversity, including barracuda and clownfish
- Marine mammals: dugongs and pink dolphins
- Sea turtles: green turtles and hawksbills
3. Economic Importance

The gulf plays a vital role in the regional economy, providing income from fishing, energy production, and trade.
- Fishing industry: shrimp, squid, tuna
- Oil and gas reserves exploited by Thailand, Malaysia, and Vietnam
- Major ports: Laem Chabang, Bangkok Port, Sihanoukville, and Vung Tau
4. Tourism – Best Islands and Activities

The Gulf of Thailand is one of the world’s top travel destinations.
- Koh Samui – luxury resorts, nightlife
- Koh Phangan – famous for stunning nature, island vibe and parties
- Koh Tao – a top scuba diving location
- Pattaya – nightlife and entertainment
- Phu Quoc – Vietnam’s top beach destination
5. Historical Significance

The Gulf of Thailand has been a major maritime hub for centuries.
- Ancient trade routes between China, India, and Southeast Asia
- Naval battles (16th-19th centuries) between Thailand and Vietnam
- Used by Japan in WWII military operations
6. Sustainability and Environmental Challenges

The Gulf faces threats from climate change, overfishing, and pollution. Sustainable tourism and conservation projects are crucial for its future.
Conclusion
The Gulf of Thailand is an essential economic and tourist hub facing environmental challenges. Sustainable tourism and responsible fishing are crucial for its future.