This dive site, aptly named Boulder City, is renowned for its truly unique underwater landscape. Divers are immersed in a world of colossal, bizarre rock formations that create the illusion of a submerged metropolis, offering endless fascinating topography to explore. Navigation is aided by a convenient mooring line that descends to 18 meters, guiding divers into the heart of the site and making it accessible for a wide range of skill levels. The emphasis here is on exploring the intricate rock structures and discovering the marine life that congregates around them.
The marine ecosystem at Boulder City is vibrant and diverse, catering to both macro and wide-angle enthusiasts. Giant gorgonians majestically adorn the rock faces, providing habitat for a plethora of smaller creatures. Divers can expect thrilling encounters with larger pelagic species such as various types of sharks, rays, barracudas, and impressive tunas. For those with a keen eye, the site also offers delightful sightings of sea needles, angelfish, and a rich variety of colorful nudibranchs, adding to the allure of this underwater city.
The optimal time to visit Boulder City is generally during the dry season, from November to April, when the Andaman Sea offers its best conditions with calmer waters and excellent visibility, maximizing the enjoyment of the site's unique features and marine inhabitants. While the main attractions are deeper, its moderate maximum depth of 25 meters makes it highly suitable for freedivers looking to explore its impressive rock formations. For scuba divers, it promises a memorable experience with its distinctive topography and rich marine biodiversity.
