continue with the rocks plus ground cover that will eventually cover the rocks...in the meantime the rocks will provide a nice clean surface and be mulch while the ground covers become established but you may find that the path isn't wide enough so some big stepping stones set into the stone mulch will make walking more comfortable and the fence looks good..perhaps you could use the same fencing to create screens for the tank and aircon
Judging from your photos it looks like you live in a hot climate. The large pebbles that you are currently using will retain the heat, and re-radiate the heat overnight. I would use a combination of concrete stepping stones and ground cover to soften the area, to shade the ground, and provide some relief from the heat.
oklouise
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