<p>Kayakers paddle through a rock arch and explore sea caves at Channel Islands National Marine Sanctuary.
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Photo credit: Claire Fackler/NOAA
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/44124469278@N01">National Marine Sanctuaries</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/onms/48770608963/">CINMS kayakers explore sea caves</a>