The humpback whale calf nicknamed "Dawn" <a href="https://en.wikipedia.org/wiki/Breach_(whale)" class="extiw" title="en:Breach (whale)">breaches</a> with windsurfers off of Sherman Island in the <a href="https://en.wikipedia.org/wiki/Sacramento_River" class="extiw" title="en:Sacramento River">Sacramento River</a>.  This humpback and her mother, nicknamed "Delta", strayed 90 miles up the Sacramento River in May 2007.  They had both been injured, apparently by a boat keel.  The <a href="https://en.wikipedia.org/wiki/Antioch_Bridge" class="extiw" title="w:Antioch Bridge">Antioch Bridge</a> is visible in the background.
Sarah Wilkin
2007-05-27
<a rel="nofollow" class="external text" href="http://incidentnews.gov/browse/thumbs/7639/photos/by-date">NOAA Fisheries Service</a> (direct image URL <a rel="nofollow" class="external autonumber" href="http://incidentnews.gov/attachments/7639/517939/CalfBreachWindsurfers-SWilkin.jpg">[1]</a>).