I will be in Medellin for a weekend in October, and plan on going to Cartagena after Medellin. If I only do those two cities, I can spend 4 nights in Medellin and 5 nights in Cartagena. However, I'm also considering Bogota -- in which case, I would spend 3 nights in each place. Does it make sense to reallocate my days to Bogota? Cartagena seems like more interesting, but it's also the rainy season there, so I'm thinking that my time might be better spent in Bogota.