Penhaxico Two

 was the planet to which the cyborg Max Capricorn planned to retire.

Climate
The Tenth Doctor described the planet as having eternal skies and shimmering seas. The planet was hit by sunlight that altered a person's genetic code, shrinking anyone that bathed in the sunlight too long to a tenth of their original size. The moonlight then returned the person to normal. (WC: Escape to Penhaxico)

Culture
Max Capricorn mentioned the planet as having ladies who were "fond of metal". (TV: Voyage of the Damned) The Tenth Doctor said the planet had the most expensive ice cream in the galaxy, including steak flavour. (WC: Escape to Penhaxico)

History
In 2009, while mistaking Jack Harkness for Max Capricorn, Capricorn's henchmen forcibly teleported Jack to Penhaxico Two. The Tenth Doctor followed them in his TARDIS. As he didn't have prolonged exposure to the sunlight, the Doctor rescued Jack from his kidnappers by lifting him up. (WC: Escape to Penhaxico)