They can be very big and mean, or they can be small pups and playful. But they are always fun to watch
Nudibranchs are underwater snails without their shell. They can be very small (maybe 1/4 inch), or a few inches in size.
Diving with sharks can be a little scary, or quite fun. Some sharks are small, some are very big. Of course, the bigger ones you need to keep your eyes on them.
Diving with sea turtles is always enjoyable. Sometimes they are very relaxed while eating, sometimes you pass them while they are swimming. You can't keep up with them when they start swimming.
These are beautiful creatures, usually hard to find. They come in different sizes and colors and are found all across the world.