Great place for hikes. Around the reservoir in two hours or up to the peaks. Afterwards you can eat up the lost calories again here in the Hotel Biz Buin.
The Siverreta Reservoir is especially recommended with its turquoise blue water. This one where you can see very well from the Silverreta house. A trip there is worth it all times.
Small rocky outcrop that is easily accessible and perfect for a small photo session. A real secret tip to take a few sea photos with a mountain panorama.