The HL Reunions also involve lots of people. I can't quote you exact numbers (others here can) but, if I recall correctly, the last two involved 900+ participants in Baltimore and 400+ on Mackinac I. The latter seemed a lot more intimate, as a result. There are tons of activities (talks by lighthouse experts, photo contests, raffles, farewell breakfast auction, etc., etc.), opportunities to see lots of lighthouses, time to meet a lot of folks you know only by name, fantastic meals with great camaraderie and so on. I do hope that the regionals don't evolve to the point that the HL Reunions disappear - that rumor has circulated before, unfortunately! All collectors should have the opportunity to attend at least one REAL Reunion! It is an experience of a lifetime!