The classic boat-party question: how much do you actually need? Over-buy and you’re lugging warm cans home; under-buy and you’re cutting the day short. A good rule of thumb for a Sydney harbour hire is about one drink per person per hour, then adjust up for a big celebration or down for a relaxed cruise. Here’s how to plan it properly.
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The one-drink-per-hour rule
Start with one standard drink per person for every hour on the water, then round up. A 4-hour hire for 8 people lands around 32 drinks as a baseline — say three or four cases of mixed beer, wine and seltzers. For a milestone birthday or a hens day, plan closer to 1.5 per person per hour. For a family cruise with kids aboard, much less.

Don’t forget ice and water
The mistake everyone makes is ice. You’ll want roughly 1kg of ice per person to keep everything cold for a few hours in the Sydney sun — more in summer. And bring plenty of water: the sun and salt air dehydrate you faster than you’d think, so aim for a big bottle per person alongside the drinks.

Match it to the boat and the day
A self-drive day where you’re anchoring for a swim needs less than a non-stop party cruise. Whoever’s skippering a self-drive boat should stay sober, so factor that in. Use the fleet browser to pick a boat with enough esky and shade for your group, and you’ll know exactly how much you can comfortably bring.

How Much Alcohol to Bring Per Person on a Boat — FAQs
How much alcohol per person on a boat?
About one standard drink per person per hour as a baseline — round up for celebrations, down for relaxed cruises.
How much ice should I bring?
Roughly 1kg per person for a few hours, more in summer, to keep drinks properly cold.
Can we restock during the hire?
On self-drive you can pull into a wharf, but it’s easier to bring enough from the start. Plan a little over, not under.
