It's sort of been a tradition for me for a long time. Although in my younger years I may have taken off for 40 or 50 miles, I think it will probably only be my 12 round trip down to the beach and back.
I'm thinking of going for the metric century this weekend, would require a loop all the way to Long Beach so I want to make sure I have enough time before it gets dark on me. Just did a 15mi. ride in the burbs.