Costco in Kahului is members only, and is $50 to join. It’s a wholesale setup which means you can only buy large quantities like three huge jars of pasta source, or a tray of 24 peaches. However the deals can be amazing, like 24 cans of coke for $7, about 30c a can, so it doesn’t take long to make back the $50 membership fee – especially if your accommodation has a fridge big enough to handle the pack sizes. Though if you’re shopping for yourself you would need to be happy eating a lot of the same thing for days on end.
It’s also a good place to go straight after a sail as they always seem to have a few free food samples to tide you over before dinner!
The pizza at Costco is a pretty good deal, about $10 for a huge pizza easily enough for 2 people, maybe 3. It’s also available by the slice if you need a quick feed after windsurfing!