I'm planning on staying here during the last leg of my honeymoon in Peru. How much is there to do in Lima? How many nights should I stay? Right now I'm thinking 2-3.

Any other must do's in Peru? So far, we are planning to take a flight up north to Mancora or one of the other beaches (looking for a good hotel if you have a recommendation, please let me know). We are also planning on hiking the incan trail up to Machu Picchu. We've got 2 weeks to travel, so we are planning on doing about 3 days up north on the beach in July (I can't find any good information on what the temperature would be like then). I feel like we'll have the potential for one other destination as well, and I have some guide book reading to do, but would welcome any recommendations.