<Ul> <Li> Kristin Cavallari </Li> <Li> Heidi Montag </Li> <Li> Audrina Patridge </Li> <Li> Lo Bosworth </Li> <Li> Stephanie Pratt </Li> </Ul> <Tr> <Th> Country of origin </Th> <Td> United States </Td> </Tr> <Tr> <Th> No. of episodes </Th> <Td> 12 </Td> </Tr> <Tr> <Th_colspan="2"> Release </Th> </Tr>

Where did the hills cast stay in costa rica