Add water, cashews, coconut milk, honey, cacao powder, vanilla and salt to high-speed blender and blend on high for 2 minutes. Refrigerate until thoroughly chilled.
Mix chocolate chips with chopped macadamia nuts. Put in freezer until needed.
Once ice cream mixture is chilled, freeze in ice cream maker according to manufacturer's directions. Add chocolate chips and macadamia nuts for last 5 minutes of churning.