London

Absolutely, I'd be happy to help you plan a wonderful family-friendly and pet-friendly itinerary for 3 days in London! Let's make sure to include plenty of parks and green spaces for a relaxed pace.

Day 1:

• Start your day with a leisurely stroll through Hyde Park, one of London's most famous parks. Your furry friend will love the open spaces and maybe even a run around the Serpentine Lake.
• Head over to the Natural History Museum, which is not only educational but also fun for the whole family. They have fascinating exhibits that will keep everyone entertained.
• For lunch, you can have a picnic in Kensington Gardens, which is adjacent to Hyde Park. There are plenty of spots to relax and enjoy a meal.
• In the afternoon, take a walk to Notting Hill. Explore the colorful streets, browse the shops, and maybe even visit Portobello Road Market.
• End your day with a visit to Little Venice, a picturesque area where you can take a relaxing boat ride along the canals.

Day 2:

• Start your day with a visit to Regent's Park. Your pet will love the wide-open spaces and maybe even a run in the dog-friendly areas.
• Head over to ZSL London Zoo, located within Regent's Park. It's a great place for kids and animal lovers to see a variety of animals up close.
• For lunch, you can have a picnic in Regent's Park or grab a bite to eat at one of the nearby cafes.
• In the afternoon, visit the nearby Primrose Hill for stunning views of the London skyline. It's a great spot for a leisurely walk and some family photos.
• End your day with a visit to Camden Market, where you can explore the unique shops and enjoy some street food.

Day 3:

• Start your day with a visit to Greenwich Park. Enjoy a leisurely walk up to the Royal Observatory for panoramic views of London.
• Explore the historic Greenwich Market, where you can find a variety of food stalls, crafts, and antiques.
• For lunch, you can have a picnic in Greenwich Park or dine at one of the many pet-friendly cafes in the area.
• In the afternoon, take a relaxing boat ride along the River Thames. You can enjoy the sights of London from the water.
• End your day with a visit to Battersea Park, a beautiful green space with a children's zoo and plenty of areas for your pet to explore.

I hope this itinerary gives you a good balance of family-friendly activities, pet-friendly spaces, and relaxing green spaces to enjoy during your 3 days in London! Let me know if you need any more suggestions or information.