After snorkeling at Pinnacle Rock, we walked to the south beach. Swimming and snorkeling is not allowed on the south beach. There are known to be sharks in that area. At first we saw nothing at all, no sharks no sea lions. But then Michelle spotted a bunch of small sharks, swimming in very shallow water (one or two feet deep) just steps off the beach. From the the white tips of their fins, we could tell that they were likely Galapagos White Tipped reef sharks, a small shark that feeds on smaller fish.
We also saw a hermit crab and some pelicans sitting in their nests. Michelle also got a a few good photos of pelicans in flight:

