Seabourn has confirmed that it will end its expedition submarine program at the conclusion of the current Antarctic season in early March 2026. The news came via a letter to travel advisors, citing low guest participation, operational complexity, and increasingly restrictive regulatory requirements. Wait, more regulatory requirements? Shocking! Actually not really. If you’ve been paying attention to expedition cruising over the last few years, this move shouldn’t come as a surprise. Cruise ships are being kicked out of port and places are closing and restricting access. Svalbard is more strict than Antarctica now and the Conflict Islands in PNG just ended all expedition invitations. Although this is sad to lose this program. The facts are it probably should have happened sooner.…