How do you get dried kelp?

Could you please explain to me in detail how the process of obtaining dried kelp is carried out? I'm particularly interested in the steps involved, from harvesting the kelp in the sea to the final drying process. Do you have to use specific tools or techniques? Are there any particular conditions that need to be met for successful drying? Additionally, are there any common challenges or issues encountered during this process? It would be helpful if you could provide a comprehensive overview of the entire procedure. Thank you for your assistance!