Thanks for your comment, Dan!
Mancora is a nice beach town, but take care with the sun, I got a horrible sunburn there!
Further South, I can recommend Chiclayo as a stopover for its impressive museum (Royal Tombs of Sipán) and the coast town Huanchaco near Trujillo (check out the ruins!) as well as Huanchaco for some amazing Andean landscape and hiking. If you need any more tips for Peru, let me know!