Dead Island 2 has many collectibles to find, as there are a ton of keys that open all sorts of different lockboxes, suitcases, and more, all of which contain secret rewards. Ocean Avenue is one of Dead Island 2's most robust locations in Hell-A to explore, as it's a pretty open area with a lot of different sections to explore such as a shopping mall, an underground car park, a news office, and more. Ocean Avenue also has quite a few different locked 'chests' to find the keys for, including Officer Wilson's Luggage.