Here are just a few ideas:

• Leogland Windsor – https://www.legoland.co.uk/
• The Lookout Discovery Centre – https://www.bracknell-forest.gov.uk/leisure-services/look-out-discovery-centre
• Beale Park – https://www.bealepark.org.uk/
• Odds Farm – https://www.oddsfarm.co.uk/
• Bucklebury Farm – https://www.buckleburyfarmpark.co.uk/
• Wellington Courty Park – https://wellington-country-park.co.uk/
• Dinton Pastures – https://www.dinton-pastures.co.uk/
• Milestone Museum – https://hampshireculturaltrust.org.uk/milestones-museum
• Reading Museum – https://www.readingmuseum.org.uk/
• Berkshire Museum of Aviation – https://www.aviationmuseumguide.co.uk/guide_south_east.php
• Merl (Museum of local farming, lots of hands on for kids) – https://www.reading.ac.uk/TheMERL
• Atom Trampoline Park – https://www.atomtrampolinepark.co.uk/
• Red Kangaroo Trampoline Park – https://www.redkangaroo.co.uk/?gclid=CKb2srPo4tQCFYa77QodNyYPyA
• Windsor Castle – https://www.viator.com/London-attractions/Windsor-Castle-tours-tickets/d737-a92?pref=02