These are rubber shoes shaped like a frog's foot and used for swimming or underwater diving.
flippers
It protects the skin from the harmful effects of the sun and help to prevent sunburn.
sunblock or sunscreen
A result of exposure to ultraviolet (UV) radiation from sunlight or from artificial sources, such as a tanning lamp found in indoor tanning beds.
sun tan
It refers to red and painful skin that feels hot to the touch.
sun burn
It is a tool shaped like a shovel and used for digging.
spade
These are brief shorts, loose-fitting or tight, worn for sports, especially boxing and swimming.
swimming trunks
These are inflated with air and worn around the user's waist, usually just under the arms or sat upon, to hold the user above the water.
inflatable rubber ring/swim ring/tubes