is one piece episode 200 filler?

At the Going Merry, Shipwright Mekao inspects the ship with interest, whilst other Marines laugh at the pirates stupidity in coming back to their ship, saying there are better ones in the bay they could steal. Meanwhile, Luffy and Sanji sneak around the base, attempting to find the jail where Zoro and Usopp are being held.

However, neither of them know where the jail is, thus they assume it is in the suspicious looking island surrounded by water.