Skip to primary navigation Skip to content Skip to footer

BUTTERFLY DAY: AUGUST 19, 2026

Quick Details

General Admission

All ages • A ticket is required per person arriving on the watercraft

$ 45

See Monarch Butterflies at Bannerman Castle

Enjoy a talk about the monarch butterflies who come to Bannerman Island each year on their journey south.

Includes a self-guided walking tour of Bannerman Island and the cruise on the Estuary Steward

Plus! Meet artist Kathleen Griffin to hear more about her project “The Butterflies of Memory” a new Bannerman Island art installation.

Please Note re Rest Rooms: There are no restrooms at the dock or at the train station, but there are two Clivus Multrum composting toilets on the island. There are Porta-Potties in the adjoining Long Dock Park (Scenic Hudson) and the Pete and Toshi Seeger Riverside Park (City of Beacon), each about a 10 minute walk away. It is a 25-minute cruise to Bannerman Island, so please plan accordingly.