Bathtub Scuba
If you have a child old enough to play safely in the tub (4+ years in most cases), they can have a great time exploring the mysterious depths of the bathtub. If you have a snorkeling mask and snorkel, your child can look authentic, but swim goggles work well, too. Swim goggles will also help keep soap out of your child's eyes. If you have no equipment, kids have enough imagination to make up the difference.
Drop a handful of coins on the bottom of the tub to let your child search for underwater treasure. To add fun, you can include some small, smooth stones to add a natural feel without damaging your bathtub. Small seashells can be purchased inexpensively at many craft stores, but be careful not to scratch your bathtub surface.
More Bath Time:
Bathtub ScubaBrr Bath
Bubble Blowing Bath
Easy Bath Paint
Foam Face
Frozen Tub Toys
Improvised Tub Toys
Ping Pong Bath
Rain Showers
Rainy Puddles
Scrub A Dub