Map of the targets and known sites visited. Most of the numbered targets were identified using NOAA lidar data (Targets 19 and 20 were known by a few local divers but undocumented). The known sites, indicated with yellow dots, are part of the Battle for Saipan WWII Maritime Heritage Trail, and include U.S. and Japanese aircraft, shipwrecks, and assault vehicles that tourists actively dive on and require regular monitoring to assess their status and preservation.