B17 Bomber Wreck is a classic Calvi boat dive off the citadel, where a remarkably intact WWII bomber rests on a sandy bottom and gives divers a clear look at the cockpit, wings, and engines. The dive is straightforward to plan from the boat, but it still rewards conservative gas management because the wreck is deep enough to make time and ascent planning matter. Calm Calvi bay conditions and very clear water are part of the appeal, along with the sense of exploring a piece of history that has become a living artificial reef.