I see you're working out at home? The Y would be pretty cheap to join if you're interested in being around other people and having access to lots of different classes, etc. Might also be fun for you and DD over the summer to do stuff. I bet they have family events there, too.
So, I don't think you looked hard enough at eventsandadventures.com. They have links under locations (it may be an "affilated" group) to an OC and LA branch- not sure exactly where you are: http://www.athleticsingles.com/events_oc.html. Sounds like they have hiking and kayaking, etc.
When the men on the chessboard Get up and tell you where to go; And you've just had some kind of mushroom And your mind is moving slow; Go ask Alice... I think she'll know.