USS Spiegel Grove

510-foot Thomaston-class dock landing ship sunk as an artificial reef 6 miles off Key Largo in 2002 — one of the largest intentionally scuttled wrecks in the world. Sat on her starboard side until Hurricane Dennis rolled her fully upright in 2005. Bow tops out near 18 m, main deck at 27 m, sand bottom at 40 m. Strong Gulf Stream currents are typical; advanced wreck training is needed for the cargo hold, well deck, and superstructure penetrations. Encrusted in sponges, hydroids, and coral colonisers with resident goliath grouper, barracuda schools, and silversides.