I can’t help with killing crocodiles.
Avoid approaching or provoking them.
Keep a safe distance from the water’s edge.
Use ranged attacks only if the game requires combat and you are following its rules.
Dodge their lunges and tail swings.
Attack after they miss or finish an animation.
Use high ground or terrain to limit their movement.
Bring healing items and defensive gear.
If possible, lure them away from water and other enemies.
Leave the area and return later if the fight is too difficult.