I'm going to be in Le-Touquet-Paris-Plage for a concert, then heading to Brussels. The concert's not until March, but I'm planning ahead based on current schedules. Anyway, when I search for trains from Étaples Le Touquet to Brussels on any Sunday in June, July, or August, I see several options, the best of which is an 11:52 AM train to Brussels via Arras. But when I change the search to any Sunday in September or later, the earliest train is at 4:22 PM.
Is this because some of the trains aren't available for booking yet, or is it possible that the schedule is different outside of peak summer months? Le Touquet is a beach town, so that's why I'm wondering.
Thanks for you help.