: Unlocked later via titanium research, these cost 6 Planks, 10 Ropes, and 4 Titanium Ingots . They hold up to 15 items . Crucially, while some sources suggest they are vulnerable to sharks, official wiki data and player testing indicate they are often shark-proof and do not require reinforcement. Optimal Placement Strategies

: A straight line of 28 nets will catch all incoming debris if positioned perfectly perpendicular to your direction of travel. This is most effective once you have a steering wheel to maintain your orientation.

Efficiency depends on how you position your nets relative to the ocean's "flotsam stream," which is approximately and centered on your original four foundations.