From Longman Dictionary of Contemporary Englishpoolsidepool‧side /ˈpuːlsaɪd/ adjective [only before noun] near or on the side of a swimming pool a poolside bar —poolside noun [singular] We met down at the poolside.
Examples from the Corpus
poolside• a poolside barbecue• A poolside dinner after a day trailing toddlers around the baby pool or monitoring middle schoolers on the high dive?• Later that day, at the poolside restaurant, a sealed envelope arrived by waiter.• I am sitting out at the poolside restaurant, sipping on my virgin pina colada. 