This was the case with the gorgeous Cap d'Antibes "Tire-Poil" trail a couple of weeks ago. The footpath takes you around a section of this exclusive cape and we highly recommend the hike when the weather cooperates. We've written more about it here.
The footpath was closed to pedestrians late April, due to the Mistral wind blowing hard.
It's difficult to imagine this footpath as anything near a "Very Dangerous Walk" under normal circumstances. The path meanders along the small beaches just after the Pointe de la Garoupe, on the side of white limestone cliffs and all along the Millionaires' Bay. When the sea becomes turbulent, the path turns slippery and waves can whip it violently.
If the wind howls, avoid the coastal path. And if you're unsure about a potential closure, you can always contact the Tourism Office. For Antibes, contact the Office de Tourisme