Cats Hate Water
House cats and jungle cats are not all that dissimilar. After all, they share common ancestry! There are some things that neither of them can give up. For one thing, if you give them both a box, they will both sit in it.
The same may be said for how they feel about water, as can be seen here. If you think taking your cat to the beach is a good idea, take a look at this image and reconsider. Aversion to water is among the most well-known qualities of home cats.