You've probably noticed in some of the pictures of the main building that there are rooms which look like they'd be tower rooms. These are actually 6 turret style honeymoon suites.
SugarLoaf houses the "light" concierge and tower rooms are available by request there. You do not pay extra, that's why it isn't coming up as an option. After you make your lodge concierge reservation, you would just get in touch with the pre-planning staff and have them notate this room request for you.
Tammi