Home to hundreds of species of birds and marine life, the Elkhorn Slough National Estuarine Reserve is the remainder of an ancient river valley. The main channel winds seven miles inland, feeding 2,500 acres of rich marsh and tidal flats. Pelicans, herons and egrets, as well as countless fish, sharks, crabs, sea lions and otters call the slough home. 

 
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Birding

Elkhorn Slough Natural Estuarine Research Reserve is a clear favorite with birders. With over 346 species of resident and migratory birds at Elkhorn Slough, it's no surprise why. Elkhorn Slough Reserve has rookeries for heron and egrets that become especially active in May. Other species often spotted in Elkhorn Slough are brown pelicans and least terns.

Hydrobiking

Elkhorn Slough's gentle waters and fascinating flora and fauna make it an ideal spot for hydrobiking. The main water channel is 7 miles long, and  provides opportunities for exploration. Be aware of the tides. Respect the local wildlife; stay 200 feet from water mammals at all times.