Hubby and I are going for the first time. We'd love to be kept informed for the Marinica too.
OP you sound concerned that not enough people will participate...is that really a concern? I guess the marketing is good because I felt enough urgency to book everything already!
I'm pushing participation for the magic bus trip...there'll be plenty of people there for the weekend. If you're anywhere from SoCal or the Bay Area, it's not a long drive, but if you're flying in, you'd be flying and then renting a car, plus a hotel...the RV sounds like an economical and fun way to go.
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If someone tells you that you have enough bicycles and you don't need any more, stop talking to them. You don't need that kind of negativity in your life.