There are no swimming events that allow the use of fins and flippers.
Swimming
Flippers Oxygen Tank Wet suit Snorkel Mask
Flaskler
yes
Yes, seals have flippers that are adapted for swimming in the water. These flippers have a streamlined shape with webbed digits that help them navigate and propel themselves through the water efficiently.
The rear flippers of a whale are called flukes. They are broad and flat, and are used for propulsion and steering while swimming.
No, only flippers to assist their swimming
Penguins do not have claws; instead, they have flippers which are adapted for swimming and diving in the water. Their flippers are used for propulsion while swimming and for balance on land.
Penguins have flippers instead of fingers. These flippers are adapted for swimming in the water rather than grasping objects.
Always wear flippers and a mask
They use thier flippers and their feet