The best thing to decide before a pool party is what happens in the water and what happens around it. Putting a cooler beside the pool does not answer that question. Set up the afternoon so nobody has to improvise once guests arrive.
Build the poolside menu around nonalcoholic drinks
Make cold water easy to reach, then add a couple of choices with an actual role: sparkling water with citrus for guests who want something simple, and a clearly labeled alcohol-free drink for those who want more flavor. Keep the options identifiable rather than relying on cup color or somebody remembering which pitcher contains what.
If you serve alcohol later, make it a separate part of the gathering away from swimming. Do not turn “we are taking a break” into an invitation to go straight back into the pool after drinking. Someone supervising swimmers should stay sober and attentive.
Give the cold drinks a shaded home
A cooler works best as a storage station, not as furniture everybody has to keep opening while standing in direct sun. Put it in shade, provide a separate place for clean cups, and plan where additional stock will remain cold. Use durable, non-glass containers around the pool to reduce the chance of broken glass near bare feet.
Keep water visible and available independently of the other drink choices. Do not make somebody ask the host for it or search behind the cocktail ingredients. If the forecast brings dangerous heat, use the indoor backup rather than treating more ice as a substitute for cooling people.
Home pool and resort pool are different setups
For a private gathering, decide who controls the access to the water, where guests can cool down, and what happens when plans change. If the pool is at a hotel, club or rental property, check that venue’s actual rules before buying outside drinks or bringing containers. This guide does not establish permission to bring alcohol into a particular venue.
Keep the route home separate from the pool plan. People who drink need a sober way back; anyone still swimming needs a sober, water-focused setup. A group arriving together may not all want to leave together, so avoid making one shared car the only option.
For an evening meal after the pool, the backyard barbecue guide covers the serving station. For visitors still getting used to the weather, read the first-visit heat guide before the day fills up with outdoor plans.