| Key | Value |
| description:en | 500 tons of German anti aircraft grenades from Schiermonnikoog in WWII |
| disused | yes |
| loc_name | IJzerbult |
| maximum_depth | 4 |
| minimum_depth | 2 |
| seamark:dumping_ground:category | explosives |
| seamark:type | dumping_ground |
| source | Paardekoper (2023), "Ammunition in the Dutch North Sea" |