The rule for approaching penguins is stay within 15 feet or 5 meters, but an approach has to be done in a quiet and gentle manner. Unlike most other places, the wildlife in Antarctica has no fear or experience of humans; thus, they are great models! If I just stay still the penguins and chicks will approach me with curiosity, since they have no 15-foot rule.
--David
http://www.artistsmagazine.com/antarctica/