San Juan del Sur has everything you'd want in a surf town - cheap seafood, fun atmosphere and most importantly, awesome people and beaches. Check out Surfnicawaves and DSS surf shops in the center of town (they're right next to each other). The guys that run these shops and give lessons are ranked in the top 3 in Nica and are great hosts. They are true locals that grew up in San Juan, rather than just moved there for the surfing. Each nearby beach that you'll surf has its own character and all are very much worth seeing. This is a very easy place to spend a month.