Boulder City

# Boulder City Dive Site Description

Boulder City is an exceptional diving destination located in the Similan Islands near Payang Island in the Andaman and Nicobar Islands, Thailand. This site features a dramatic underwater landscape composed of massive granite boulders creating caves, crevices, and swim-throughs that offer exciting exploration opportunities.

Divers encounter vibrant coral formations and abundant marine life, including reef sharks, groupers, snappers, and colorful reef fish. The site is known for encounters with larger pelagic species, making it ideal for experienced divers seeking diverse marine biodiversity.

Depths range from 5 to 40 meters, with the most interesting formations concentrated between 15-30 meters. The site’s complexity and strong currents make it suitable for intermediate to advanced divers with good buoyancy control and navigation skills.

Boulder City’s unique geology and rich marine ecosystem make it a must-visit site in the Similan Islands, particularly during the dry season when visibility and sea conditions are optimal.

🐠 Marine Life at This Dive Site

Spotted Porcupinefish Diodon hystrix elijah_goh

Twospot Wrasse Oxycheilinus bimaculatus nijntje51

Phyllidia alyta Phyllidia alyta nijntje51

Gorgeous Shrimpgoby Amblyeleotris wheeleri nijntje51

Whitetail Surgeonfish Acanthurus thompsoni nijntje51

Indian Redfin Butterflyfish Chaetodon trifasciatus nijntje51

Species data from iNaturalist (CC BY-NC)