Not very expert but went recently went to Iceland where we saw Harlequin Ducks. First time we were next to some real twitchers who were beside themselves with excitement although they were miles away and tiny even through binoculars. Second time they were really really extremely close, so we were lucky.
I saw seals (Atlantic greys) and a lovely blue jelly fish, and I looked hopefully for basking sharks but no luck. Loads of lovely wildflowers on the Cornish road sides but hardly any butterflies. Can we have a butterfly spot? I can start with one Ringlet and one Large White.