(Another question. Be warned: as our departure date nears (Jan.28), questions will get more numerous and, quite possibly, more frantic.

)
We will be arriving on island late in the day on a Saturday, probably close to 6pm. Will there be any places open where we can pick up a few snacks and staples? If not, are any shops open on Sunday where we can do this?
I've looked into provisioning but they have a minimum order amount that I don't believe we'll need. I'm just looking to get some breakfast items, drinks and snacks, as we will enjoy lunches and dinners out. Our resort offers breakfast but my husband plans to schedule morning dives and, in the past, has had to leave for the dive shop before breakfast is served.
Thanks!