The Green Clean
We see that getting rid of mechanical cleaning as a whole is not an option for you. This might be due to a lot of tourism visiting or the municipality not wanting to change. However, a step in the good direction would already be to reduce the intensity with which the beach is cleaned. Say for example that instead of cleaning the beach every day, you switch to cleaning it four times a week. The overall costs might increase a little, but nature on the beach has more time to recover.
Alternatives are to move the wrack that is present on the beach to the edges of the beach that are less frequently visited. This way the nutrients still stay at the beach, But the part that the tourists visit can be cleaned. In addition, more waste bins could be added, or the waste bins could be emptied more frequently. This way the chance of litter just being dumped on the beach is lower, reducing the cleaning costs.
Smoke-free zones could also be implemented. This way smoking is totally prohibited on the beach or smokers could have a designated area where they can smoke, like a terrace. preventing cigarettes from ending up on the beaches can already result in a lower need to clean manually.
Waste prevention methods