Why not pack a picnic and head to Hyde Park & Kensington Gardens for the day. This is a lovely family day out, and it's free.
The Diana playground is a great place to pass a few hours. It's very safe as it's gated and adults are not allowed in without a child, and it's packed with loads of different things – including a sound garden, water and sand and a large pirates boat – big enough to climb around.
After this you could wander over to the Diana Memorial Fountain and cool down with a splash in the water. It would be a good idea to pack towels & swimming costumes.
Times and prices are subject to change. Contact venue before setting out.
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