I got round this problem this week though and the boys and I did our first proper activity together, it went down very well, was easy to set up, cheap and not messy - Yay!
Using a selection of random toys and plastic boxes, I made several blocks of ice with hidden surprises inside. I told Leo we were going to play with ice and at first he was confused, I placed all the blocks into a big plastic box and took them outside. He thought it hilarious to see his toys inside.
Louka was not impressed at first and cried a little as he picked up a small block and sat holding it for a while, but after watching Leo laughing and trying and failing to keep hold of the slippery blocks he laughed too and got quite animated chatting away to himself.
As well as the blocks with toys inside I also made some blocks with a drop of food colouring in each one, this provided much amusement as they melted and turned the whole thing a lovely shade of greeny brown!
I was surprised at how many questions Leo asked about it all considering how often we have ice in our drinks, I was also surprised at how long it all lasted considering how hot it was!
Please feel free to link up your own 'Summer dreams' or summer fun ideas / posts below....I've also got a collaborative Summer Dreams Pinterest board so if you would like me to add you just let me know in the comments.