The best excursions and holidays are the ones where apart from the planned, you allocate time for the unplanned, our you're willing to adapt.
We were certainly not planning to go out for whale and dolphin watching, but when we stopped at a restaurant on top of the cliffs we spotted a leaflet about Fancy21 and decided to get on it next day.
On our way towards the open sea we passed the surprisingly brutalist dock; this is what you see on the picture.
(Oh, by the way: this entry was written by Peter Molnar, and originally posted on petermolnar dot net.)