Dear {Daycare Owner},
Thank you for taking such good care of {child's name} for the past {number of} {months/years}. We feel so lucky we found your facility, enrolling our {son/daughter} here was one of the best decisions we made as parents.
Thanks to {daycare}'s loving environment, our child has become a joyful and well-mannered little {boy/girl} who {list some of the skills they learned at the daycare}.
We're so proud of {child's name}'s growth, which wouldn't have been possible without {daycare}.
Warm regards,
{Your Name}