Crystal-clear waters and pristine coral reefs make Ko Kudi one of Rayong’s most rewarding island escapes. This compact island offers excellent snorkelling opportunities just metres from its sandy shores, where tropical fish dart between healthy coral formations. Unlike some of Thailand’s more developed islands, Ko Kudi maintains its natural charm with minimal commercial development, making it perfect for those seeking an authentic marine experience.
Vibrant coral gardens await just beyond the main beach, where parrotfish, angelfish, and schools of yellow snappers create an underwater spectacle. The island’s shallow lagoons are ideal for swimming and snorkelling, with visibility often extending 10-15 metres on calm days. Walking trails wind through the island’s interior, leading to viewpoints overlooking the Gulf of Thailand. Fresh sea breezes carry the scent of frangipani and salt air, while the sound of gentle waves lapping against limestone rocks creates a natural soundtrack. Small beach vendors occasionally sell fresh coconuts and local snacks.
Tranquillity defines the Ko Kudi experience, where the pace naturally slows to match the rhythm of the tides. Few crowds mean you can often find secluded spots along the coastline, whether you’re snorkelling above the reefs or simply relaxing on the white sand. The island’s compact size creates an intimate atmosphere where fellow visitors often share snorkelling tips and marine life sightings.
Speedboats and longtail boats depart regularly from Rayong’s main pier, with the journey taking approximately 45 minutes. November through April offers the calmest seas and best underwater visibility for snorkelling. Bring reef-safe sunscreen, snorkelling gear if you have it, and water shoes for rocky areas. Most visitors treat Ko Kudi as a day trip, though basic accommodation exists for overnight stays. The entry fee helps maintain the island’s facilities and marine conservation efforts.
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