Honestly u could probably just call them, the place is far off any path and surrounded by military base, place had plenty of tables and we went on Mother's day at lunch time.
Never felt a need for a reservation. Their service is very fast and they can accommodate.
you can make reservation, but i doubt you'd need one on a weekend, unless you had a large group of people. it's never crowded on Sat/Sun in my experience.
Definitely call them if you want to try and make a reservation
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