I work for the San Diego River Park Foundation and we have a huge event called "River Days" that takes place in May. We have events that span the entire San Diego River, which is 52 miles, from Julian to Ocean Beach. I am looking for groups that want to have an event during River Days, and I thought it might be fun to do some geocaching along the river. Other options would be hiking, bike riding, rock climbing, cleanups, etc. Would you be interested in hosting an event, or do you know anyone who might?