It is possible to do so, but keep in mind that a safety distance of 500 metres has been established. No vessel can approach a windmill park closer than 500 metres.
The only exception are vessels which have been granted entry by the coast guard, such as workboats of the windmill operator, supervising vessels, rescue vessels, etc., which are allowed to sail into the windmill park.
Should a vessel without permission sail closer to the windmills and not respect the safety distance, this vessel is liable to punishment and can be penalized. Whenever a vessel enters the forbidden area, the coast guard centre is automatically alerted, as well as the shipping police.
Rules at sea