If you're interesting in going on an upcoming trip, just Edit a given trip below and add your name at the end of the list for the corresponding role... when finished, make sure you hit Update at the bottom of the form (and not Close).  You can additionally email Wayne with any questions on details of the trip.  Important: if you're willing to be the "trip coordinator" (key job!), then so indicate after your name... e.g. John Smith (I'll be trip coordinator and make this all happen!).