Well I was lucky last trip. On Monday May 11th it was overcast calm seas with some rain in the area. So the wife and I hung out on the hotel balcony and enjoyed breakfast that morning. While eating we seen a huge school of Dolphins pass just off shore going from south to north from Hilton Myrtle Beach resort. There must have been at least a hundred of them. We were on the 12th floor and since the water was clear and calm we could clearly see them just beneath the water surface and of coarse seen them break the surface with their dorsal fin.
Well if that was no enough, about 7 that evening we happen to be back in the room and seen what we think was the same school again going the other way. It was high tide and they were very close to the beach. Even the few beach swimmers seen them and rushed out to greet them, but the dolphins just moved further out.
Anyway to top things off we noticed the water boiling and churning in a couple of places right up on shore about the same time we seen the dolphins. They were huge schools of pretty good sized fish running smaller bait fish right up to the shore line. Could not tell what kind they were, but fairly good size and thousands of them. You could have caught them with your hands.