Dolphins
There are two in the pic if you look carefully. There were about five playing in the bow wave of the boat, taking turns.
Harbour seal at Eyemouth (Scotland)
The chap in the boat had just returned to the harbour and was tidying up. The seal waited with its tail on the bottom of the harbour until he realised that he wasn't going to receive a fish supper so he dived under the boat and resurfaced a minute later with a big eel which he had obviously been saving for later. It didn't take long for him to finish it.
Puffins
Puffin by Jean-Pierre Declemy, on Flickr
There were lots of these funny little chaps bobbing about and diving under when we got close.
Guillemots
Guillemot diving by Jean-Pierre Declemy, on Flickr
Well I almost got him