Hey fellas, my church has tasked me with finding a single day community service project (and ultimately coordinating it). There will be about 40 volunteers, and they will be able to work about a full day. The only issues are that it has to be on a specific date (April 27th) and it has to be in or near San Francisco. There have been a lot of ideas thrown around about cleaning a park or the beach, but I want something that is a little bit more personal/community involved. Habitat for humanity seems like a viable option. Any ideas, or past experiences setting up this sort of thing?