This dive site, O Arco, is conveniently located just a 10-minute boat ride from the Ponta Delgada marina in Portugal. It is distinguished by a captivating bottom composed of volcanic rocks, forming a unique underwater landscape. The site's namesake, a prominent natural arch standing 3 to 4 meters high, is its main feature and offers an interesting focal point for navigation and exploration.
Divers at O Arco can expect to encounter a variety of marine species. Smaller inhabitants include the dwarf tonguefish, wide-eyed founder, cleaver wrasse, lizardfish, and seaslugs, making it a good spot for macro photography. Red mullet and grey mullet are also commonly seen, while the presence of seahorse and both common stingrays and round stingrays adds to the site's biodiversity.
The best time to visit O Arco for optimal diving and freediving conditions, including good visibility and calm seas, is typically during the warmer months from late spring through early autumn. The site's accessible depths and the visually appealing arch make it suitable for a wide range of divers, from beginners to more experienced individuals looking to enjoy the unique volcanic topography and rich marine life of the Azores.
