This was the email I received from them in January, maybe it's only in the high season though?:
Patty
---- "Thilak M.V. Pillai" <thilak@legrandmarche.net> wrote:
> Good Afternoon Patty,
>
> We are open until 6 PM on Sundays.
>
> Best Regards,
>
> Thilak M.V. Pillai
> Le Grand Marche
> General Manager
> # 79 Bush Road, St Maarten
> Phone : +1721 5424400 Fax : +1721 5424401
> Email : thilak@legrandmarche.net
> www.legrandmarche.net
>