To find the Poolside Container Key for the Poolside Bio Container in Dead Island 2, travel to the location shown below in the Halperin Hotel area!
There you’ll find the Sunbather!
Take him out then loot the Poolside Container Key! You’ll need to bring this key to the pool at the Halperin Hotel.
There you’ll find the Poolside Bio Container. Use the key to open this container to receive the Puncturator Composite Sledgehammer! For more guides on Dead Island 2, click here!