The Orosi Valley, southeast of Cartago, is generally considered one of the most beautiful valleys in Costa Rica. The Reventazón River meanders through this steep-sided valley until it collects in the lake formed by the Cachí Dam. A well-paved road winds a near-perfect loop around the lake, allowing for easy access to all the attractions listed below. Scenic overlooks are near the town of Orosi, at the head of the valley, and above Ujarrás. This is primarily an agricultural area, but the valley comes alive on weekends as picnickers and bicyclists fill the roads and restaurants.