Wash the hibiscus leaves in a clean dish to get rid of the sand, dirt, and debris. Run the faucet repeatedly to rinse twice.
Slice the ginger, lemons, and pineapple using a cutting board. The cleaned hibiscus should be combined with the remaining ingredients and boiled for 30 minutes in a pot. Let it cool naturally so the flavors infuse.
Decant or filter the mixture and add ice and sparkling water (optional). Serve and garnish with orange and cucumber for extra flavor.