Nauset Beach in Orleans reopened Sunday after being closed briefly Saturday when a shark was seen swimming not far from shore.

Orleans resident Dana Richardson tells the Cape Cod Times he saw a shark fin following him Saturday while he was paddle boarding about 200 feet from shore in eight feet of water, and then later spotted a fin following a kayaker. The kayaker quickly rowed ashore.

Experts say the sharks are being drawn to Cape Cod's waters by an abundance of seals, a favorite meal of the predatory fish. Swimmers in Chatham have been told to steer clear of seals after sharks were seen in the water there last week.