I did the Spotlight in 2003 on a Panama Canal Cruise. They did not have any excursion on it because the food quality was not up to RSSC Standards. What I understood is that they take you to a market to show you how to select food that you will prepare.

We prepared a Vegetables in a butter/sugar sauce.
We prepared an Asparagus/crab Appetizer that was amazing
We prepared Filet in a cabernet reduction
We prepared Fruit Crepes in a sabayon

There were two dinners and a cocktail party plus the 4 classes. We had a really great time. I called the it "Cooking with Butter and Wine and Cooking with MORE Butter" It was all about the presentation and social interaction.