Alternatively, you can frame your rink with good ol’ fashioned snow. This will require lots of snow packing to create a good foundation for your rink, grab your boots and get stomping. The more tightly it is packed the more smooth your ice surface will be. Snow banks can serve as makeshift rink boards, although the real thing is much better for containing hockey pucks.
Use a light coloured tarp to line your rink (this prevents attracting the sun and melting your rink). Ensure it fits snug against the ground and boards: any unsupported areas may tear once your ice freezes. Use spring clamps to hold your liner in place while you fill it. Make sure you place your tarp and start filling when the weather will be around -15 degrees Celsius with no snow for 3 days for the best freezing conditions! Fill with ~4 inches of water.