48 hours in Lima is a great prospect
Like others say, the food is mindblowing, the historic centre is far cleaner and nicer than the one we have here in BOG, go to the museo de gastronomia, have a wander around, take a coffee and people watch in parque kennedy, check out calle berlin for cheap giant beers, go to parque del amor and watch the ocean and parapenting, if you like fitness then I like to run along the coast from miraflores pier to chorrillos then come back through barranco.
This place is well worth a look
http://maps.google.com/maps?oe=UTF-8...ed=0CCEQ8gEwAA