Something is always blooming at Amistad, but the best times to visit to view wildflowers is during the mild weather in spring and fall, and after rains. Many local plants respond very quickly to precipitation and bloom almost immediately.
Maine ocean islands provide the only nesting sites for Atlantic puffins in the United States. Eastern Egg Rock in the midcoast region, Seal Island and Matinicus Rock at the mouth of Penobscot Bay, and Machias Seal Island and Petit Manan Island off the downeast coast provide habitat for more than 4,000 puffins each summer.