Take your water tray activities outside in the sunshine.
Make Bubble Foam with bubble bath or washing up liquid, food colouring and a hand whisk. Get those hand and arm muscles strengthened by whisking fast to create lots of foam!
Make your own water fountains with plastic bottles and milk cartons. Ask an adult to help you pierce the plastic bottles with a skewer or other tool. Decide together where to put the holes. Will you make them around the bottom for a sprinkler effect? Or will you make a column of holes for a ladder effect? Use funnels and cups to fill.