May 11 - June 10 : 10am, 3pm, call and check
June 11 - Aug 20 : 10am, 1:30pm, 5:30pm
The 5:30PM tour on Mon, Wed, and Fri is a Photographer's Tour. See https://birdisland.net/schedule/ for more info.
Aug 21 - Sept 9 : 10:30am, 3pm, call & check. (Puffins may be gone)
Subject to change.