All 6 inflatable crocodile locations for the "Investigator" challenge.
It's easier to start at the ICA safe house with a sniper rifle and a lockpick.
The first two are on the beach. 00:07
The third is on a stairway next to the ICA safehouse. 00:16
The fourth is in a bathtub in another apartment building. 00:57
The fifth is in the sewers, stuck in an opening. 01:49
The sixth is under the pier. 02:35
Congratulations, you just shot 6 inflatable crocodiles!