We only got to see Picon in The Plan which was a two hour spin-off film. The film was meant to show the attack from the Cylon perspective focusing most on Brother John Cavil, the so called Number One model.
Picon is a nod to Pisces, the Zodiac constellation that represents the fish. The planet predominatly a water world, it had to be because of its name. We see a brief scene in a topless bar between John and Ellen Tigh. It is the only topless scene in all the Battlestar Galactica series so whether they are trying to portray the island as something or now is not clear.
Copyright: Vivendi Universal