He got on the wrong boat to Provincetown, so Jack Connors bought him a plane ticket

“I don’t know why it took me this long to realize 400 kids aren’t going to P-town,’’ Cheung said.

Alex Cheung got on what he thought was a ferry to Provincetown on Thursday. But it was actually a boat to Long Island and Camp Harbor View. Luckily, the camp’s founder, Jack Connors, was on the boat, and bought Cheung a plane ticket to P-town because of the mix up. –David L Ryan/Globe Staff

Alex Cheung, a 33-year-old South Boston resident, was looking forward to meeting friends in Provincetown for a day trip Thursday — so he hopped on a large ferry in the Seaport called the “Provincetown II.’’

But it wasn’t going to P-town. Cheung had accidentally boarded a boat taking more than 400 young campers to Boston’s Long Island for another day at Camp Harbor View.

Luckily for Cheung, Boston businessman and philanthropist Jack Connors was also on the boat. Connors founded Camp Harbor View in 2007 and traveled to the island Thursday morning because of a visit from Mayor Martin J. Walsh.