When Marigot livens up early in the day at the quayside, you'll want to be there.
You will want to be in Marigot early in the day at the quayside.  
mnli hypothesis: You will want to be in Marigot early in the day at the quayside.   premise: When Marigot livens up early in the day at the quayside, you'll want to be there.