Because it is a beach area eatery the diner is only open seasonally (roughly some time in March to some time in October) and on the shoulder season it is only open for long weekends. Best bet is to check their Facebook page (link on the sidebar -->) for their hours, as to not be disappointed if you drive out there on a sunny day when they're closed.
Oh, and they're only open 6am-3pm when they are open AND they're cash only. But other than that - they're awesome!
I'm looking forward to getting out there again this summer - maybe biking on a cute pink retro roadbike? Hope to see you there!