The Custom House Maritime Museum in New London will host the Long Island Sound Lighthouse Conference April 24 and 25.

On April 24, people — or as organizers put it, “all LIS lighthouse lovers, stewards, curators and historians” — can share information, learn best practices and plan for the season ahead.

Presenters include Fresnel lens expert Chad Kaiser with videos by Dan Spinella; historians Jeremy D’Entremont and Bob Muller; representatives of the U.S. Coast Guard; and lighthouse stewards Nick Korstad, the owner of three lighthouses, and Pam Setchell, who saved Huntington Light and who will talk about the Huntington Lighthouse Musicfest. Living history artist Joseph Smith will be on hand to portray Augustin-Jean Fresnel, the inventor of the Fresnel lens.

On April 25, participants can see two exhibitions at the Custom House, then tour the lighthouses of eastern Long Island Sound aboard the Cross Sound Ferry and hear narration by lighthouse authorities Bob Muller, Elinor DeWire, and Cross Sound’s Ted Webb.

It costs $75 to attend both days of the conference, $50 for Monday only, and $35 for Tuesday only. Call (860) 447-2501 or visit nlmaritimesociety.org.