Possible Whales off Amlwch!

Just a quick heads up to any sea watchers. Down at Amlwch Port today, where I had 3 Risso's dolphins 2 weeks ago some friends reported Porpoises , Whales and Dolphins today! When I said " are you sure they were Whales?" they said they were big, black above with white below. Orcas? Whatever, if your near Amlwch tomorrow I'm sure it's worth checking out the sea!