The regency consists two of the three largest members of the Biak Islands archipelago at the northern entrance into Cenderawasih Bay.

[1] The table also includes the location of the district headquarters, the number of administrative villages (totaling 254 rural kampung and 14 urban kelurahan) and minor islands within each district, and its post code.

Numfor Island (comprising the first five districts listed above) were intended to be split off to form a separate regency under proposals announced in 2013 by the Indonesian Government, although all such new measures have been placed on hold since 2013.

There are at least 12 diving sites in the Padaido Archipelago, which comprises 54 islets, with its pristine water, wide sandy beaches and high biodiversity, about two hours from Biak town by speedboat.

The visibility is well up to 30 metres, and a favourite site is the World War II preserved wreckage of a US Catalina seaplane, with angelfish, lionfish, damselfish and other smaller fishes swimming around the wreckage.