One of the most basic water activities you can do is to wash the toys. Its a perfect indoor water activity for toddlers to do. And clean the toys in the process!
25 Water Play Activities - Happy Hooligans
30+ Fun Activities for Kids to Play in the Dirt! Fun activities for kids, Fun activities, Activities for kids
Hundreds of Indoor Activities for Toddlers and Preschoolers - HOAWG
Washing Dishes Sensory Bin Idea - Toot's Mom is Tired
Washing Dishes Toddler Activity * ages 1-3 ⋆ Raising Dragons
Washing Toys Water Activity for Toddlers
Bubble Bath Toy Car Wash for Kids
Drip Drop Toddler Car Wash - Toddler Approved
Inside Water Play - The Activity Mom Water play activities, Water play for kids, Kids learning activities
Learning Activities for Kids