A little known jewel of the Central Coast and just 15 miles south of Pismo Beach. Oso Flaco Lake is located at the south end of the Pismo Dunes Natural Preserve. The trail starts as a dirt path and then crosses a footbridge over the 75-acre lake and wetlands preserve. This freshwater lake is a great place for watching birds and wildlife. After crossing the lake,  a wooden boardwalk leads through the Nipomo Dunes. See rare plants and birds, as well as protected sand dunes.

Most Wednesdays, Saturdays & Sundays, enjoy guided walks thru the Oso Flaco Lake Natural Area, part of the Guadelupe - Nipomo Dunes Preserve. Many guided walks given on various days. More info.