Bigger boat than some of the other cruises, which suited us. We bounced out (the sea was a bit choppy) away from the harbour, trying (and failing) to find dolphins. To save stomachs, we went back to the harbour where it was calmer and noticed some of the boats crowded around one of the bridges. We caught a few dolphin glimpses as they porpoised through the water and one of the smaller boats had a dolphin jumping in it's wake. The sightings weren't that numerous and they were hard to pinpoint, but we certainly saw them, so job done.