We've seen quite a few dolphins this year - mostly just off the beach early morning or early evening when out walking the hound. We've been running out of Barmouth for about 10 days so far this year, and only seen them once from the boat.
If you slow down to about 7 knots, keep going in a straight line, and if they're in the mood, they come and play in the bow wave
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D...
Oh - and the big jelly-fish have just started to reappear (Barrel or Lion?)