Take a boat tour to Passion Island, Isla Pajaros and Yalahau Spring from Isla Holbox. On this guided excursion, view over 35 species of nesting birds on Isla Pajaros (Bird Island), including frigates and pelicans. Hear about the birds' migration patterns and breeding breeding behaviors from your bird-loving local guide. Continue to Passion Island to see the resident flamingos, then swim in the cenote (freshwater sinkhole) at Yalahau. Round-trip transportation from Isla Holbox hotels is included.