It depends on the breed of Bulldog. Some Bulldogs can swim much longer than others.
Some bulldogs like to swim and some don’t, but they will always find an “up-side” in that if their paws get wet they will still be able to grip well when walking on a floor. This is due to the pads’ design which makes it easier for them to walk if they get wet feet, and because many dogs see water as a challenge to play in and enjoy (despite their built-in fur protection) swimming could be something some bulldogs would absolutely love…