Try out the navigation sport of orienteering either on foot or on a mountain bike at a Folsom Lake on March 25. Sponsored by Gold Country Orienteers (GCO), the meet takes place at the Granite Bay area of Folsom Lake State Recreation Area. Orienteering is a fun and challenging sport for individuals and families. Using a detailed map, compass and a set of clues, you navigate from point to point to find a series of designated checkpoints. The sport can be done as a competitive race or a leisurely hike (or ride) and is great for youth groups, hikers and other outdoors enthusiasts, adventure racers and anyone seeking a physical and a mental challenge. At this meet there will be the more common courses done on foot, as well as, for the first time, courses designed for mountain bikers. Beginning, intermediate and advanced courses will be offered for both foot and mountain bike orienteering (MTB-O). Beginner instruction will be available. Registration will be from 9 a.m. to noon. The courses can be started between 10 a.m. and 12:30 p.m. The cost is $5 for GCO members and $7 for non-members for individuals, plus $2 for each additional member in a group. The long MTB-O course will require two maps and will have a $2 higher fee than all other courses. To get to the park, take Interstate 80 to Roseville and exit at Douglas Boulevard. Go east for about six miles; the road takes you right into the park. Or you can take Hazel-Sierra College Boulevard or Auburn-Folsom Road north to Douglas and turn right. There is a $10 park entry fee. Look for orange-and-white GCO orienteering signs. For more information, visit goldcountryorienteers.org or contact Paul at firstname.lastname@example.org or 209-295-6261.