Not sure, please call them.
Go to the website, it has a lot of information.
There is not a free breakfast buffet, but there is the Espresso Bar open 6 am - 11pm offering drinks, fresh fruit, etc. There is also Twigs Cafe offering breakfast, lunch and dinner open 6 am - 10 pm. Or, you can order room services 6 am - 10 pm.
The buffet hours vary seasonally
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