Swimming at Playa Roca Negra presents several safety challenges due to its rocky nature and the dark rock formations that give it its name. The rocky shoreline can be slippery and sharp, making entry and exit from the water difficult. Submerged rocks may be harder to see due to the dark coloration, increasing collision risk. Currents around rock formations can be unpredictable and potentially strong. The remote location in Los Monjes means no lifeguards, emergency services, or medical facilities are available. Only experienced swimmers comfortable in rocky coastal environments should consider swimming here, and sturdy water shoes are essential for foot protection.

Playa Roca Negra is best visited during less crowded periods, though given the Los Monjes Archipelago's restricted military status, any visit is rare regardless of season. Venezuela's dry season from December to April typically offers the most favorable weather and calmer seas for accessing this remote location. The reduced crowds designation is relative—this hidden beach sees virtually no tourist traffic due to access restrictions. Weather conditions and sea state are more important considerations than avoiding crowds. Marine forecasts should be checked carefully before any attempt to visit, as exposed rocky coastlines can become dangerous in rough weather or high winds.