Hyde Park in London is a fascinating place to take a stroll. You can walk through the Hyde Park Arch on your way in to the Park.
You can walk along the main walkways past the Serpentine (a lake) and through grassy meadows and groves of trees.
There are gardens, too. We particularly enjoyed walking through the rose garden.
The model for the boy in the Dolphin statue was one of George MacDonald's sons.