Yes. But in order to do that, you have to open your eyes.
So they can see...
Technically, yes. You can either wear goggles or scuba masks to see underwater, and you could open your eyes underwater (granted your vision will be so blurry that you can barely make out the shape of your own hand) to see, but opening your eyes underwater without gear is not a reliable way to see underwater.
An Alligator's eyes are adapted to see underwater because half the time they live underwater. They catch their food underwater, bathe themselves underwater, and they can sometimes nap there. An Alligator has an extra eyelid on their eyes that is clear (almost like a contact lense) to see clearly underwater without letting any fluid gettting into their eyes.
No, there are no underwater cities in San Andreas. No mermaids either.
Yes! Alligators can stay underwater for hours at a time and come out at day.
about a day
about a day
Underwater world is a marine life. We can see many kind of fishes.
Put on goggles.
no you can not
Mermaids do not exist in real life, but there are plenty of creatures that can see well under water. Their eyes are adapted for an underwater environment.
some types but if you took a periscope underwater you would see clear or black, oh and all the metal would rust.