Then build a bollard see through wall 1000 feet inland.
Drones easily see over concrete walls.
If it has holes, it ain’t no wall. Ask China.
I was hoping for some piranhea fish in the river!
It’ll work but I wish they wouldn’t call it a wall. I’ve built engineered retaining walls,block walls,poured in place walls, shotcrete walls, even brick and stone walls. If a customer wanted me to build a wall and they got a steel bollard fence,I wouldn’t get paid.