 It's not just, hey, let's go jump in a pool and paddle around. There's a specific purpose. Let's do this aspect. Let's train this aspect to where we can get us to where we're efficient in what we're doing. One of our trainings is we know we've got a lot of limited visibility. So I throw in small objects such as matchbox cars or carabiners, and we black out the masks and make the guys go in.