Ko Kham Underwater Park, Chonburi

Crystal-clear waters surrounding a pristine island off Chonburi’s coast offer some of Thailand’s most accessible underwater adventures. Ko Kham Underwater Park protects vibrant coral reefs and marine life just a short boat ride from the mainland, making it perfect for both snorkeling novices and experienced divers. The designated marine protected area ensures healthy ecosystems while providing safe, supervised access to underwater wonders that rival more remote destinations.

Colorful coral formations create an underwater garden where tropical fish dart between brain corals and sea fans. Schools of angelfish, parrotfish, and butterflyfish glide past as you float above the reef, while the gentle lapping of waves above creates a soothing soundtrack. The park’s clear visibility often extends 10-15 meters, revealing every detail of this thriving ecosystem. Snorkeling gear is available for rent, and certified diving guides lead tours to deeper sections where larger fish congregate. Above water, the island’s white sand beaches provide perfect spots for rest between underwater explorations, while longtail boats bob peacefully in the turquoise bay.

Tranquility defines the Ko Kham experience, where the only sounds are gentle waves and occasional boat engines in the distance. The protected status means crowds remain manageable even during peak times, creating an intimate connection with nature. Floating weightlessly above living coral gardens feels almost meditative, while the warm tropical waters invite extended exploration. Families appreciate the calm conditions and shallow areas perfect for children’s first snorkeling attempts.

Morning visits between 9 AM and noon offer the clearest water and calmest conditions before afternoon winds pick up. Tour boats depart regularly from Sattahip pier, with most operators including snorkeling equipment and lunch. Bring reef-safe sunscreen, a waterproof camera, and quick-dry clothing. The 600 baht entry fee supports ongoing conservation efforts that keep these reefs healthy and accessible, making this marine park an excellent introduction to Thailand’s underwater treasures without venturing far from Bangkok.