Go ahead and take everything with you. Everything. Aqua Lung lets you get this done with its Explorer Collection: Roller. This bag is built for travel and its 140 liters of space lets you fit in a full set of dive gear and then some. The Roller has huge articulated side pockets that fit giant fins such as the Aqua Lung Slingshot (sold separately) and anchor loops on either side for hanging easy access items as well as for securing the bag during transport.