This is keyhole. On the surface there is just a tiny opening. But below it opens up nice and wide. Pass through and you swim through a sort of tunnel, reminds me of Star Wars. A New Hope, “stay on target...” waterhorsecharters #sealion #sealions #sealife #natgeo #nature #natgeotravel #natgeoyourshot #underwater #underwatervideo #underwaterphotography #scuba #scubadiving #scubadivingmag #scubadivingmagazine #padi #diving #nature #animals #canon #naturephotography #cinematography #ocean #sandiego #rosaritobeach #mexico #mexicotravel #padi #shotonred #shotongates