Traveling by sea.
I think traveling by sea isn't interesting and safe, because more than half of the trip around you only sea, sea and again sea, but when you traveling by car you can see a lot of landscapes. This is the first think. And the second- it isn't so safety because if anything will happen with the ship nobody can help and repair it, but if you travel by car you can ask help somewhere.
Now about puses
If you travel by ship you can enjoy your time with your family. You can study more about everything in the water. And it is very good way to enjoy the holidays.
I am agree with that's very good way to spend our holidays.