Martin Tiedemann: 17 July: Lie on London's only public beach, found at the heart of a national nature reserve. Dug in 1811 to feed water to the Grand Union Canal, it is now a popular spot for picnics and walkers.
Trevor Durham: Top tip- everyone flocks to Peppa Pig World when Paultons opens in the morning, Peppa Pig World much quieter in afternoon with shorter queues, so consider doing rest of park first