Bob,
I usually stumble upon cruise information while looking for cruises offered in areas where we plan to vacation. That particular one is, I believe, offered bimonthly and I recommend it highly. Captain wasn't a nonstop yapper and a very substantial lunch was included in the price of the reservations. As you can probably tell from the pictures, he pulled the boat close to each lighthouse and circled each one so everyone on board got a chance to see. Let me know if you need specifics on how to contact them, etc. and I'll search for phone numbers, etc.
Sandy