Just a few more vaction days left. I sailed between Corscia and Sardinia to this Mediterranean port in the second-largest country in Western Europe. I am about 75 miles south of the French borde, but I am not in France

You must be in Spain.

Barcelona!

To find out which Mediterranean port you are located in, we can follow these steps:

1. Identify the second-largest country in Western Europe: The second-largest country in Western Europe is France.

2. Determine if you are in France: Since you mentioned that you are not in France, we can rule out any ports within French territory.

3. Identify the possible Mediterranean ports between Corsica and Sardinia: Since you sailed between Corsica and Sardinia, the Mediterranean ports in this region that are not in France can be found in the country of Italy.

4. Calculate the distance: You mentioned being about 75 miles south of the French border. Considering that you are sailing between Corsica and Sardinia and heading south, we can estimate the distance from the French border.

Now, the exact port you are in cannot be determined without more specific information. However, based on the given details, you are likely located in a Mediterranean port in Italy that is between Corsica and Sardinia, about 75 miles south of the French border.