Paint Horse

We have not sailed on Seabourn to date. There are a couple of cruises in the next few months with interesting itineraries. All of the information I need about these cruises is on the Seabourn website except for the details for the onshore activities offered by the ship at each stop. The cost is the main detail I do not see. Where do I find this important information? Is there anything peculiar about the way Seabourn handles this aspect of a cruise other than lack of detail?