New York melodic punk vets H2O played a 20th anniversary show for their self-titled debut in their hometown last year. This year, they'll do one for 1997's Thicker Than Water.

It's a Rocks Off Concert Cruise on September 23 aboard the Harbor Lights. It boards at 6 PM and departs at 7 from the Skyport Marina at E. 23rd St. & FDR Dr. Tickets are on sale. Flyer below.

At the end of this month, H2O play Philly fest This Is Hardcore with Shelter, Buried Alive, Ramallah/BFB, Madball, Leeway, Murphy's Law, Earth Crisis, Racetraitor, and more (tickets). Their only other upcoming date at the moment is a festival in Quebec in early September.

Stream Thicker Than Water: