A 24-foot boat hit the rocks in the Ocean City Inlet Saturday afternoon and was taking on water.  The call made to the Coast Guard was made by a good Samaritan just after 2pm.  A Coast Guard boat already underway diverted from their patrol to assist.  Maryland Natural Resources Police had the vessel in tow but transferred the tow to the Coast Guard which dewatered the vessel and took the boat and three mariners to Sunset Marina.