Dive shops are typically situated next to the ocean.
Chances are high that you are operating on land that has been reclaimed at the expense of Mangrove forests.
If so, and in the spirit of this project, we expect you to restore an area that is equivalent to the total area that you are currently occupying with you business.
You will need to add that area, rounded up to the next hectare, to the hectares you have calculated based on your Carbon emissions.