My entry, posted as is to the author:
You have a nice "project" there. 😄
If I may suggest, you can also transform the walkway into 2 beautiful types:
1. Reflexology walkway.
You can walk on it in the morning/afternoon to help improve your health.
2. Watery steeping stone
I think this idea could be beautifully done if the area is large enough. Although, water maintenance could be a hassle. Static and dirty pool of water could bring lots of diseases.
Confirmed!
Those are some nice suggestions, although a bit complex. But, hey! Why keep it simple? :)