Managua, Laguna de Xiloa

Yeap, I was to Laguna de Xiloa last month and I had a great time. It's not a real laguna, but a volcanic crater lake, where people from Managua go to have fun during weekends. You can try fishing, boating and swimming and there are picnic facilities. It's only 16 km from the city but buses (no 113) go there only at weekends, so it gets pretty crowded. If you want to relax in peace and quite, you can camp there during the week (but you'll have to walk or take a taxi). You have to pay 0.30$ to stay there (or 1.60 for a car).