[SassyMom]

Isn't that lighthouse something? I think that would be one lighthouse that I wouldn't want to be the lighthouse keeper in. Maybe this is a question you can answer, what do the different markings mean on the lighthouses. I know there is some kind of meaning to them, but I don't know what they are.

[Diver Dave]

I'm afraid my knowledge of lighthouses is very limited. I just like to see them in person and photos.

I'll check with my son-in-law. He's more into them than me and he might be able to answer your question. May take a few days though.