One of these obstacles was a log crib consisting of a palm log enclosure filled with pieces of coral.
The logs were tied together with wire and varied in shape and size and built at the low water mark with the intention that they would be hidden at high water, ripping a hole in any landing craft or LVT hitting the obstacle.
Prior to a landing, US Navy Underwater Demolition Teams (UDTs) were deployed to destroy these obstacles. The log cribs could potentially be dismantled by cutting the wire binding the logs together and manually dismantling them. This had the advantage of not alerting the enemy of the imminent landing. The log cribs a could be destroyed with demolition charges.
This pack is sold in packs of 3, consisting of 2 undamaged cribs and 1 partially demolished crib.
The partially demolished crib depicts the remains of an obstacle after the UDT divers had been forced to retreat after being spotted and fired upon by a Japanese patrol.
Height 32mm, Diameter 55mm (All dimensions are approximate)