Young nature enthusiasts and their parents engaged in frost painting and skating at Sutton Courtenay Environmental Education Centre near Didcot.
The nature-based fun was organised by Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust (BBOWT) on January 22.
Charlotte Howe, senior learning officer at BBOWT, said: "It was very cold at Nature Tots, but we had a great time doing lots of dinosaur-themed activities and the sun shone."
Activities also included 'digging for fossils' followed by indoor play with dinosaur toys in a mock swamp.
BBOWT, who runs more than 80 nature reserves across three counties, hosts regular Nature Tots sessions and wildlife clubs for various age groups.
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