Dos Hermanos Islands are the twin rock forms offshore from the Blue Lagoon side of Pagudpud. They are not a major excursion on their own, but they help give Maira-ira its distinctive horizon.
Look for them from the beach or nearby viewpoints rather than building a whole plan around them. Their value is as part of the eastern coast's theatre: headlands, water, small islands, and weather moving fast across the Luzon Strait.